"The only thing necessary [...] is for good men to do nothing."
-- Edmund Burke Abridged
No mortal hand could guide the rocket precisely enough, to the point where it's now been targeted, given the turbulence of the rocket's wake and the way that tiny errors would amplify. So the fine steering is being done by an analog magical processor inspired by the navigators on Azlanti IOUN stones, as hinted at by a more cumulated civilization's concept of a "guided missile".
The rocket approaches the wall of force guarding the palace, and a Disintegrate already in the process of going off completes at just the right time and destroys the wall of force.
The rocket crashes through a window at nearly the speed of sound; at nearly the same instant, a Dispel completes on a half-ton of low-quality high explosive previously under the effect of a Shrink Item spell; at nearly the same instant, that explosive detonates even as it expands back to normal size.
This explosion has been targeted to launch the Crown of Infernal Majesty out of the Imperial Palace into the air over Egorian. Not on an exact precalculated trajectory, you can't do that with explosions at this magitech level; but the vector between the Crown and the center of detonation has rendered it predictably the case that the Crown will get launched in a known rough direction. A certain person has just Teleported into Egorian to watch from that direction, ready to spot the magical signature of the fast-moving major artifact and move to grab it after.
Abrogail Thrune and Aspexia Rugatonn have impressive resistances and saves and protective magic items, none of which mattered any more than the Palace's security precautions mattered. A half-ton of explosive going off in the same room isn't a combat attack, it's just you being dead.
It's not her first time dying, not her first time waking in Hell in company of the devil who holds her soul as custodian for Asmodeus. But along with everything else it means that the Crown of Infernal Majesty has been abruptly removed from her; it's that, more than the shock of being dead, that she struggles to recover from, in that moment of surprise.
(And because of that, she doesn't think, fast enough, to think all of the things that she could have thought -)
Those devils that deal at all with mortals in their tedious unpolished form are not held in particularly high regard among devils; mortals are, after all, paving stones in expectation and mostly in practice, and those torments and betrayals that can be visited on stronger and more interesting beings are more sophisticated, more impressive, all-around better, than those routine, boring, and limited torments that can be attempted on the recently-dead without destroying any hope of further use from them.
There is another reason why such devils are held in less regard, and it's that they have to pretend the mortals are interesting and important and impressive, at least a little bit, to lure those mortals into signing their souls away, to give those mortals a tiny fragment of a line with which to trick themselves into believing they matter. They can call the mortals worthless worms, of course, but they have to do it in a tone that concedes that this great devil is here, after all, treating with them. Mortals love that.
Abrogail Thrune II is generally to get a warm welcome, on arriving in Hell, because her presence is likely temporary, and her loyalties need to be permanent. Abrogail Thrune II is certainly smart enough to know that the greeting she gets on arriving to Hell, with hope of resurrection, is nothing like the greeting she'll get when she falls to them forever. But still, she's a mortal, and like most of them she thinks she matters, and feeding that little delusion of hers is critical to not losing her entirely.
So the senior contract devil in possession of Abrogail Thrune's soul pauses in his conversation when Abrogail Thrune arrives, much as it galls him, and turns from the beings that actually matter to the disoriented shell of this mortal, and says, "well, well... I take it this one wasn't on your schedule?"
He's reading her mind, of course, in case she has the expectation she won't be resurrected and he can drop the farce, or in case she's in a mood where he can light her on fire and then claim later it was for her own good really.
Her sorcery is not about her, a gaping hole in place of what is, at eighth circle, more a part of herself than her own hands -
- schedule. Devil talking to her. She's dead. Being dead... wasn't on her schedule? That doesn't sound right. Aspexia was just worried that she hadn't been assassinated -
Keltham.
Keltham killed her.
She doesn't even know how. Didn't feel it. She was in her own palace.
Clever boy, thinks the part of herself that, without a whole coherent mind in control of it, thinks such things, remembered condescension mixing with a touch of actual admiration.
But does that count as it being on her schedule?
"It's complicated," her mouth says regally.
"Tedious mortal complicated, or is there something in your latest complications of interest to Hell? - actually, think of that but don't speak."
Someone's attempting to scry them. It is trivial enough for a devil to shut down a scry on his own person or his own slave, but not obvious he'd care to; perhaps these are Abrogail's allies, and serve Hell, and if not, well - Abrogail's enemies can see her in Hell, if they like, and if they look again next week and she hasn't been resurrected, what they see will be a great deal more fun.
Interest to - Hell? Her life has been so enormously complicated that she doesn't know where to start (isn't prioritizing in this scrambled state), with 6 INT missing from herself all the endless complications feel like a ruined tower collapsing down into a heap of stones. Her mind goes to the most-recent complications, possible layers of what Keltham could be trying to trick her into believing, about whether he leveled from his fight with a thing from the Dark Tapestry, about diamonds and the City of Brass (no, Hell already knows about that, Hell was first to inform Cheliax), she's not supposed to think about hopeful plans because then they can't come to pass the way she hoped them, only that - somehow seems much stupider, in her own stupid state, Aspexia can't be right about that, she suddenly feels -
It helps.
But not instantly.
Seconds go on ticking while she focuses on the pain, lets it wash through her and remind her that she is failing to impress; one second, two seconds, half a round, her thoughts collect -
Aspexia Rugatonn was there, is she dead too, yes because the attack wouldn't have been timed like that otherwise, does Keltham have something planned to stop Aspexia's Resurrection and her own -
If all Keltham wanted was to see his child dead, she should be resurrected soon. Minutes, though, not rounds, because with both her and Aspexia dead, the protocol calls for resurrecting Rugatonn first. Not as a power struggle between Church and Crown - well, of course there's always a power struggle, but in this case it works out to a common-sense answer and a tiny flow of political capital - Aspexia can cast True Resurrection herself, if she happens to have it prepped, it might save a scroll -
Let's take this moment in time to talk (as one often does) about the theory and practice of counterassassination security in Cheliax.
In Golarion generally, the vast majority of heads-of-state are defended primarily by custom, by inertia, by the country's sovereign not actually being important enough to be worth defending against the equivalent of one person with a distance-targetable projectile weapon. Security-through-nobody-actually-bothering-to-attack-you-all-that-hard-or-creatively is the most popular kind of security.
The Queen of Cheliax, Abrogail Thrune II, is one of the rare exceptions to this rule. From the standpoint of, say, the Church of Iomedae, Abrogail Thrune makes Golarion significantly worse just by existing, and if she stopped ruling Cheliax her replacement would probably not be equally creative and dynamic. Iomedae's Church would pay a lot of money to any creative person who managed to kill Abrogail Thrune in a way where she didn't come back; or, better yet, to anyone who could take the Crown of Infernal Majesty permanently off the board.
So Abrogail Thrune's personal security model centers around the presumption that the attacker's primary goals, and the primary negative outcomes that Cheliax wants to avoid, are:
1) Somebody taking Abrogail Thrune down in a way that True Resurrection, or at ultimate need Miracles and Wishes, cannot fix. Soul Bind, most obviously, and then getting away with the soul-gem. Just having a daemon-worshipper Maledict her to Abaddon would not suffice; if you are willing to pay enough you can Wish back a Maledicted soul. If the body was destroyed, you can Wish up another body first. You'd need to do that before her soul was eaten, but unless you are really dawdling about this there will likely be time. Similarly, to have a daemon consume Abrogail Thrune in the process of an assassination would require quite a lot of time during which Cheliax had not caught up with you. Still, it wouldn't do to let Abrogail Thrune - or her soul gem - get Teleported onto the front doorstep of the House of Oblivion.
2) Getting the Crown of Infernal Majesty permanently out of Cheliax's reach, presumably out of the reach of Hell and Asmodeus. This isn't going to be easy; Asmodeus can definitely see the Crown wherever it goes. Putting the Crown into a bag of holding and tossing the bag into a portable hole, which usually suffices to lose a thing forever in the far distant Astral Plane, is not nearly going to suffice here. But if you can get the Crown to Heaven - that might do it. Even if Asmodeus could pay Heaven to get it back, the payment would be huge enough that the injury to Evil would be vast; paladins would offer their souls for it; and in the aftermath Abrogail Thrune would no longer be Queen, or much of anything at all.
All of this points to a security model that centers on keeping Abrogail Thrune where she is rather than alive. The Queen is not without her defenses, over and above the crazy levels of protection from the Crown of Infernal Majesty; but this is because while the Queen is alive she can better stay in one place, and defend her Crown and her soul. Defending the Queen's life isn't the point the same way. That's a Raise Dead issue, or at worst a True Resurrection, or at real worst a matter of Wish and Miracle. So long as she's not inside a gemstone.
If the assassination is taking place outside the Palace, the threat model, then, is an attacker who has a plan for making off with a gem containing Abrogail Thrune's soul, or with the Crown of Infernal Majesty, or less likely kidnapping her living body.
The full details of Abrogail Thrune's security entourages outside the Palace would be lengthy; and, of course, heavily classified.
But a primary element of her personal Security is that Abrogail Thrune's entourage will be decorated with Telepathic Bonds and Status spells. Someone on the other end of those will be in telepathic range of Gorthoklek, who will promptly Greater Teleport in - not to that exact location, as will obviously be Teleport Trapped by at least one side of the security game; Gorthoklek will Teleport in above and dive quickly.
(Abrogail Thrune does sometimes appear in a place without heavy Security - life would be less fun for her, otherwise - but when she does, she goes Mind Blanked and never ever lets it form anything resembling a predictable pattern. The one Competent Security on her personal guard invariably tears her hair out anyways.)
Abrogail Thrune's counterassassination security model has also obviously considered an attack on the Queen inside her Palace's Forbiddance; there's just way too much weird shit in Golarion for it to be realistically possible to keep everyone out of a place.
The advantage to the attacker, in this case, will be that Abrogail Thrune will be less prepared than when she ventures outside, without a dozen protective spells that are too bothersome or too expensive to constantly redo. She also will not be able to immediately Dimension Door or Teleport away, because of the Palace's Forbiddance. Gorthoklek cannot immediately Greater Teleport to her side.
The attacker's primary disadvantage is the Forbiddance; and the security model assumes that the attacker's primary goal is getting outside of the Forbiddance, carrying a gem with the Queen's soul or her head still wearing the Crown (or both).
Permanent walls of force are Very Expensive. One-time walls of force, rather less. If the Queen's Status indicates that she is severely injured or dead while inside the Palace, multiple layered walls of force and several other complicated measures will spring up to enclose the Palace Forbiddance almost immediately. Other security measures are then invoked with the aim of sweeping the enclosed volume inside the countermeasures before they run out of time and come down; against an attacker determined to hide and ride out Cheliax's supply of temporary enclosures. (An attacker trying to hide probably has the Queen's soul gem; the Crown should be impossible to hide.)
Of course Security has not failed to consider the possibility of the Forbiddance itself being taken down, by a Dispel from Nefreti Clepati or a Mage's Disjunction. Could the attacker also have cast a Teleport Trap before then, in case Abrogail Thrune tries to just Teleport right out? If it was some other sovereign being targeted, then maybe, but a Teleport Trap allows both a Will save and Spell Resistance; an 8th-circle sorcerer wearing the Crown of Infernal Majesty is probably fine here.
Again the details of measure and countermeasure would be lengthy; but one very pragmatic countermeasure is that if the Palace Forbiddance goes down while the Queen is inside it, Gorthoklek teleports to her location and then scries for Aspexia Rugatonn.
Wishnapping is a whole entire other class of threat. Almost nobody besides Abrogail Thrune needs to worry about it. It's just too expensive.
If you are Abrogail Thrune, or somebody else worth well more than a hundred thousand gold pieces to kidnap, the first elementary precaution is to be Mind Blanked whenever you're out of a Forbiddance.
But as for a Mage's Disjunction or a Nefreti Clepati Dispel being levied on a Forbiddance, while you're inside it, and a Wish following immediately after -
Well, then, if you're Abrogail Thrune, you laugh. Involuntary Wish-movement allows both Will-saves and Spell Resistance, and Abrogail Thrune wearing the Crown has plenty of both. Even without the Crown an 8th-circle sorcerer still gets a heck of a Will save, and Abrogail Thrune's luxuriously spoiled aristocratic upbringing has granted her something of an extra-strong Will save on top of that. A circle of a hundred noble Efreet could all Wish for her to be moved, one after another, and Abrogail Thrune would not move did she choose to stay; the Efreet are not such mighty casters, after all, even if they have a strange affinity for Wishes. You'd have to render her unconscious outside a Forbiddance and take off her Crown, and if you can do either of those things, you can just take the Crown.
With all that said, it isn't realistically possible to prevent anybody from ever killing the Queen. The primary pillar of security there is that resurrection is in fact a thing. For this reason did Abrogail and Aspexia believe that Keltham ought to not have too much trouble assassinating the Queen, so long as Abrogail occasionally appeared outside the Palace at a predictable place and time, no matter how much Security she brought with her and even if they were not instructed to leave gaps.
...Of course, then, another obvious thought is that you could first assassinate Abrogail Thrune in a very normal way, and then hire a Lawful Evil spellcaster to resurrect her; or even with some work and the right set of lies, get an Asmodean to cast True Resurrection from scroll, aimed at Abrogail Thrune while she was vulnerable in Hell.
To prevent Abrogail from giving her consent for resurrection unwittingly - or her asking the devil who holds custody of her soul to do the same - there's an obvious sort of setup that involves a Greater Scry spell and a Message through that scry (as can be enacted much more swiftly than Sending), containing a password telling Abrogail that the upcoming resurrection is an authorized one, and naming a randomized exact number of rounds before that resurrection.
Depending on how badly things got fucked up when the Queen died, and especially if Aspexia Rugatonn is also dead or if there's an ongoing Security penetration, their True Resurrections may take place within the sort of tiny unambitious demiplane that isn't too insanely expensive to stabilize with a Permanency.
That resurrection isn't the priority, though, the priority is securing the Crown of Infernal Majesty - and oh there's all sorts of complications involved in Abrogail Thrune trying to prevent anybody else from putting on the Crown during that process! Especially if they happen to have maybe executed a compact with Asmodeus, or if they're a Thrune; or maybe a Thrune in disguise who's secretly executed a compact...
The only reason why that resurrection should happen shortly, if nothing has gone wrong, is that the resurrection process doesn't depend on the Crown-securing process. The rez can proceed in parallel as soon as the process for trying to get Aspexia Rugatonn to do it fails, and the find-Rugatonn process is on a sharp time-bound.
- but if all Keltham wanted was to still his child - he would not have tried, probably succeeded, in killing Rugatonn at the same time. That's - Abrogail doesn't see it yet, the reason, but there must have been a plan -
A flash of disoriented horror and dismay, would Keltham take the Crown - to cast into Heaven, or wear himself - no that's madness, it would have been Carissa, obviously Carissa, surely Carissa, as the motive power, she'd never let the Crown be thrown into Heaven like garbage. If, with Abrogail dead, Carissa compacted of Asmodeus can lay her own hands upon the Crown of Infernal Majesty - then Carissa wins, obviously, if she can prove her continuing Asmodean loyalties to the Most High beyond all doubt, and has strength enough to force skeptical eighth-circle wizards to kneel to her. And otherwise there will be a horrific mess -
None of this is very interesting, if you are a devil; mortals can have their mortal power struggles. He dismisses the scry with an irritated flick of his tail; whether it is Abrogail's allies or her enemies, they've seen enough, and squeezes her hand further as it seems to be salutary so far. "You may speak aloud," he says. Sometimes mortals can think more clearly that way.
Wishes don't obey all the usual rules for resurrections, which is why they can beat Maledictions and in some cases temporarily infernal contracts (if the contracted didn't die of old age).
But Wishes do get Will saves, if they try to resurrect you without consent. Even in death, some pissant Efreeti cannot just yank Abrogail Thrune back to life against her will.
And a petitioner in the afterlife who does not consent might also be assisted by the authority of that plane in resisting. Usually would be, if that plane wants to keep that petitioner. Hell can't go around Wishing its enemies out of Heaven for funsies, or vice versa.
Abrogail Thrune is currently looking up at an expressionless pit fiend towering over her!
And alive!