"That's a very sensible suggestion from a Security standpoint, but on second reflection, how about no, and you take me to the place I arrived, right now, per Asmodeus's directive to you."

Carissa has no idea who this person is but she's entirely confident that 1) she outranks them 2) she knows Keltham and they don't 3) they have absolutely no business whispering random complaints in her ear and distracting her in the middle of a very important very fraught conversation.

....shitfuck, probably what's going on here is that this specific moron doesn't know that 'Carissa sides with Keltham over Cheliax, flees with him' is an established fallback plan the details of which have been worked out, and they're parsing it as a straightforward attempt at defection.

Message to Keltham. 'no one else can hear us. I can help you if I have any idea what your plan is.'

Message to Security. 'established fallback, don't interfere, I'm not defecting, STOP TALKING TO ME WHILE I'M MID CONVERSATION WITH TARGET'.

He looks at Carissa.  It's a long look, and a controlled one.

Keltham turns back to the Security.  "Asmodeus gave you an order.  Obey it."

Message to Keltham. "Random people on duty when everyone competent's up north don't know who you are and don't know that you are an exception to the general rule that in an emergency Security's in charge."

"There are special orders regarding him," she says aloud. "You don't have the clearance but I do and they do say he can leave." Message: You should hesitate to believe that, though, say you need to consult someone more senior -

Message to Sevar:  That sounds an awful lot like me disobeying a direct order from Asmodeus so that you have a slightly smaller chance of ending up as a statue.

"Would you please allow me to try to get somebody more senior to handle this?" says the Security.

Message: 'defection plan workshopped with and approved by Maillol who got Asmodeus orders directly. go.'.

Keltham has already turned to the other Security present.  "It is completely implausible that the person stationed outside my room would not know about standing orders from Asmodeus regarding me, in case, for example, they got any bright ideas about mind control.  You will now conduct me to the palace landing area where I arrived, in accordance with Asmodeus's orders to you regarding me."

The other Security sets off in the correct direction, wearing a perfectly controlled expression.

Keltham is following.  He wears the actually fairly-difficult-to-read expression of somebody who is deliberately relaxing all of his facial muscles and doesn't care if you notice that's what he's doing.

....these aren't the people stationed outside Keltham's room standardly, those all fled in a panic an hour ago. These people genuinely haven't been informed of a bunch of really basic things that should've been communicated even in a really rushed handoff, therefore it doesn't strain credulity that they wouldn't have been informed of different really basic things that should've been communicated even in a really rushed handoff. 

Agreement does not require you to escort him out, she Messages, trying to keep it nonobvious from her tone that she's going to have all these people executed even if things work out. Need a Forbiddance or Antimagic Field in the courtyard immediately. 

There is a loudening pure-internal-screaming thing going on in the back of her head. She takes a second to turn it off. You cannot allow yourself to die of being scared you're going to die, or you'll die; that part is simple. 

What did Abadar say to him. She wouldn't have expected Abadar to know enough, or be able to see enough, to say 'Carissa in particular is lying to you/is senior in their operations'.

The Security stops walking.  "I'm... not sure exactly what Asmodeus's orders say here, come to think, and in particular I'm not sure that I have to actively help you get yourself killed," he says.

Keltham continues walking in the direction the Security was moving!

Forbiddances are in fact quite expensive, the Palace is quite large, and if Keltham keeps moving in that direction without some Asmodean actively hindering him, he will be outside the protected area before not really all that long.

Message from the smarter Security:  You can't possibly tell me that throwing up an Antimagic Field around him is not actively hindering his departure.

The plan, you morons who need to do less arguing and more following orders in a time sensitive emergency, is that I say 'that's an antimagic field' and run, with him, away, and depart, with him, sooner than he'd otherwise have succeeded in departing.

(They should have done fucking practice runthroughs with Maillol present to tell everyone exactly what they could and could not do.)

Message:  fine I'm requesting one through Telepathic Bond but we are inside a Forbiddance and my guess is he's going to be outside it before I can get a scroll delivered to me while inside a Forbiddance why don't you think of something to fucking say to him?

Carissa badly misses Elias Abarco, whose Message would have been 'ETA 4 minutes on scroll', because Elias Abarco whatever his other personal flaws isn't a complete waste of space. 

Talking to Keltham obviously isn't going to work. She has one more card up her sleeve for that and it's best used once the probably-Osirians are already here and also it's going to blow everything up and she shouldn't do it if there might be anything not yet blown up. 

"Pilar?" she says instead. 

Looks like the powers of Chaotic Good didn't feel like answering this particular plea for aid?  Maybe Sevar isn't really looking to have any fun, here?  Either Pilar isn't here, or she turned silent and invisible as soon as she showed up.

Message to Sevar:  He's about to hit an area with uncleared personnel, do we tell them to get out of the way?

YES.

Keltham enters a mysteriously deserted meeting room, surveys it, picks a door out, starts walking through a mysteriously deserted hallway.

Message to Sevar:  Uncleared personnel manning a security checkpoint at end of hallway, end of Forbiddance is beyond, do we clear checkpoint, do you have anything at all here.

Drop back and leave me alone with him. Don't clear out the checkpoint. "Keltham - are we supposed to resurrect you? Supposed to tell someone else to resurrect you? Who? If we lose your body we're not going to be able to, now, with the Grand High Priestess gone." Snort. "You could give us a lock of hair or something." That's not how Resurrection works but she might not know that.

"Finished talking to Security with Message or whatever they use?  If you didn't have anything else to do with your time, you'd probably have been thinking of a lot of things to say, just then."

Security checkpoint ahead!  Somebody at least managed to tell them to keep controlled facial expressions, didn't manage to tell one guy to not be carrying an obviously evil spiky dagger.  Maybe Keltham will just think it's doompunk.  At least nobody blurts out 'Carissa Sevar?'

"I have a lot of things to say. I am assuming, based on the entire way you're acting, that you - expect you could be argued out of this, and therefore can't listen if we argue, and if that was what I thought, I wouldn't want someone to make me hear an argument anyway. So, logistical questions. Have you noticed the obvious reason to take me with you or not or do you not want to tell me until the last second."