While he is waiting on Fernando to exit, he casts Disguise Self, just in case he has any reason to remove his mask.  He doesn't expect trouble from Fernando, but the other group he plans to teleport to after might have attracted trouble... so he casts his Overland Flight, it lasts the better part of the day and the mobility can be a life saver.

Lesser wizards from the cult cast a few buffs they have spare on himself, the Inquisitor and Mateo: a Protection from Law for each of them, a Resist Energy (Fire) for himself.

He takes another two rounds after Fernando exits the rope trick to look for any sign of illusion or ambush.  He thinks it is clear.  He reaches out his hand to take Mateo and the inquisitor.

She hopes the third circle wizard has fucked up hard enough that they can torture and Maledict him.  She hopes the leader lets use the scroll to cast it, she's good at casting from scrolls but 4th circle scrolls are expensive enough he may not want to risk her wasting it  (apparently it's different enough from Inquisitor spell that there is some risk of that).  Maledicting this wizard would also the added benefit that it should stop Mateo from being such a whiny little bitch.

She casts a Heightened Awareness to stay alert, but she doesn't expect to need it.

She takes their leader's hand.

Mateo had thought being brought to the cult's central base would be a promotion.  Instead, he's found he's gone from being the best fighter of his little group which camped outdoors, to the worst fighter (although still better than the wizards) in a larger group hidden away in a cramped underground base (stone shapes are decent at moving stone, but not especially voluminous).  He can bully the weakest wizards into doing some of his chores, but that doesn't help with the boredom and restlessness.  And to make matters worse, in a recent detect thoughts inspection he had openly thought about fucking off to go be a bandit.

He is decent with a glaive and an excellent grappler, but he knows the real reason why he is being brought to help wrangle an errant third-circle wizard.  If the wizard turns out to have been deliberately attempting desertion they are going to torture him and maledict him, just to help stop Mateo from getting any ideas.

He reaches out to accept the teleportation.

After casting his abjurations, he checks the scry with his detect magic, the leader got it cast well enough to fit one through.  A second set of eyes looking out for trouble wouldn't hurt.  He thinks he sees another transmutation as the wizard they are scrying on pokes his head out, but its hard to discern from the transmutation aura of the rope trick itself and across the planar boundary of the rope trick.  It takes another few rounds for the detect magic to refocus as the scrying sensor crosses the planar boundary.  He thinks he can make out a haste... which might be cause for alarm.  He tries to focus to see what it is... oh wait they are already leaving.  He starts to say something... but surely the leader would have seen for himself if there was any problems?

Just when he had started to fear the delay might last long enough that the haste runs out, three cultist appear right around Fernando.  If all three are the equivalent of fifth circle wizards, they might all be dead, he really hopes that "start on a new path" theory of Pharasma's judgement isn't just optimistic propaganda.

He already has his Phase Step going off before any of the cultists can react, he wants to be well clear of their glaives when they realize this is an ambush.

She shoots at the one that looks like a wizard. (Protection from Law won't help him. No one here is Lawful.)

Web, positioned carefully enough that it won't stop Elettra and Justice from closing in around the wizard.

Well, she really would've rather they been the sort of cult that was perfectly willing to leave people alone as long as they're fighting Asmodeus, but it was always pretty unlikely it'd work out that nicely.

Hold Person, aiming for the wizard. He'll probably throw it off, but if he doesn't it's the sort of thing that could decide the fight, if it's winnable to begin with. Once it lands, or doesn't, she's running in.

She's moving the instant the Teleport completes, charging towards the wizard with her daggers out. Magic can stop a wizard from casting, but so can being dead.

Mateo is thinking faster than he ever has in his life.  They are outnumbered, in an ambush, presumably against an enemy that has already cast their spells.  He didn't really like his place in the Cult, and judging by their wizard having turned on them to work with these ambushers, his attackers evidently take in former Baphomet Cultists.  He'll figure out exactly who he needs to proclaim for or theology he needs to parrot once he's made clear which side he is joining in.

You only have to get sloppy once.

He doesn't waste time contemplating if Fernando turned traitor or was dominated or somehow completely unwitting. He focuses on exactly what he needs to do.

He is badly tempted to try for a Phantasmal Putrefaction, if any of his attackers lack both will and fortitude it will take them out of the fight.  But he doesn't know how strong they are or that there isn't more of them hidden.  So he immediately begins to cast his teleport to get them out.  He also starts to fly upward.

 His mind brushes off the hold person like it isn't even there, but the web catches him and halts his upward momentum, but teleport doesn't actually have somatic components so he keeps casting.

One of the arrow catches him painfully in the shoulder, but he maintains his concentration through the pain.  He just another half second to finish casting-

He can pull just enough free of the web to get at least one attack in.

Stab.  It lands just about perfectly on his (former) leader.

"I repent of serving Baphomet!  I surrender!  I want to join you!"

He is desperately trying to think of exactly what or who his ambushers might be aligned with so he can declare for them more clearly.

He loses the spell.  With the web slowing him, he can't risk anything with a somatic component.  One of Baphomet's boons allows him to summon demons without using a proper spell and thus bypass somatic and verbal components.  Even though it is faster than a normal summon monster spell it will take him another precious few seconds.  Wizards of his level are substantially tougher than ordinary people, but he still won't last more than another round or two at this rate.

"Traitors!"

She might be dead anyway, but she'll take Mateo with her, she can hit hard enough to put her glaive straight through his armor.  She activates her judgement of destruction with a thought.  Surviving longer with a judgement of protection might be the better choice for lasting a round or two longer, but she isn't thinking that clearly.

Well that sounds convenient.  He needs a moment to reorient after his Phase Step, but he can guess what is happening just from hearing it.  He'll start summoning a wolf to join the fight.

Well.

That might be some kind of trick but if so it's a trick that got the teleporter stabbed and wasted his spell.

There's a sort of trick to using Bless, where if you're thinking of it right you can consider someone to be, or not be, your comrade-in-arms. She doesn't actually know whether it's the sort of thing you can change once you've cast it, and she's still reserving judgment on what sort of person the new defector actually is, but it's not hard to think of him as her ally in killing this fucking wizard.

"—Leave that one alive," she says. (She's mainly speaking for his benefit, her friends don't actually need to be told.)

She shoots several more arrows at the wizard.

He's not sure what the opposed wizard is doing but it doesn't seem like it involves any form of speech or movement; he holds off on casting his next spell, ready to react to whatever the wizard does next.

She stabs at the wizard with her spear, willing him dead.

Her daggers dance in and out, aiming for his weakest points. Whatever he's doing, he won't be able to do it if he's dead.

His demoniac boon is easier to use than a spell, but it still requires concentration, and he loses it before he can finish.  Not that it matters, he is dead in the next moment. 

One of the "perks" of being a demoniac is that it drags one's soul directly to the domain of their demonic master.  The next thing he knows is opening his eyes to an endless labyrinth of bone.

Possibly she should have turned her attention towards guarding the leader instead of killing the traitor.  Well, it's probably too late now, she might as well finish what she started, with her judgement active she should be able to kill him before the ambushers can turn their attention to her.

He attempts to step back but the web has him caught.  It probably wouldn't have helped given the reach of the glaive.  He is trying to think of something to say to get them to heal him quickly but nothing good comes to mind and the glaive in his chest turns the start of a shout into a gurgle.

He finishes summoning a wolf.  He lands it right in the way of the still fighting cultist.  Hopefully they can save the defector so they have time to get on a path away from the Abyss (he kind of doubts the purity of their intent would be enough to keep them out of the Abyss if they died right now).

Silent Image, creating a 'barrier' between the injured man and the cultist.