Since this option has opened up, what with Trap of the Entwining Vines and Theraphosa's Weaver's Trap of Webs, I'm going to do the following.
Round 1: the webs are cast around the three magi in black,
Round 2 Trap of the Entwining Vines surrounds them as well (this spell works like Weaver's Trap of Webs, future castings of both spells may require finesse; I think we can discuss it in the OCC secion).
I need intiatives for Ivor and Deykin, as well as their round 2 actions.
Alexei probably doesn't want to leap into a group entangled in webs (the vines will happen after Alexei leaps, and he'll be stuck in that, definitely. So, we'll inject a bit of narrative into the battle scene and pick up in a bit.
"Valerian, I suggest you leave, you've already failed in your objective. You might yet save your House and hold true to the Order you took an oath to protect. While you and your House might have prepared for my eventual return, I've been preparing the rest of the Order for it, as well. You see I came to a conclusion long ago, that one can survive only so many attempts on one's life. Over 50 years ago, at the last attempt on my life, I decided I needed to disappear and changed my tactics. You see, Valerian, I am quite prepared to die today."
One of the magi besides Valerian speaks, "You said this would be a simple mission, in and out, recover the books and be gone. You didn't say anything about anyone but mundanes dying or killing another magus. You said the covenant was empty!" The last sentence is hissed out.
"Come now, Valerian, you didn't tell them the real mission? That he intended to kill me? That his goal was to enter my sanctum, retrieve an arcane connection to me and kill me? Just had a slight problem there, didn't you? I don't suppose you told them who I really am, or what books they were supposedly looking for, did you? Your reputation really does preceed you, my dear boy. Very well, I was gauntleted Xenophon of Tremere. About 50 years ago members of House Guernicus attempted to assassinate me for research I'd been conducting, authenticating the Duresca scrolls. At that time, it was the third attempt on my life, and it was decided that I would assume a new identity. Just so that's all clear, and everyone knows why we're here. They, or at least he Apollodorus/Xenophon points at Valerian, "is here to kill me. Everyone else is here because there should be witnesses to such a momentous event, understanding that House Guernicus assassinates those who get to close to the Truth about their House. Poena's been alerted, and I expect she'll be in Durenmar any moment now. Of course Andru was here when you arrived, but I suspect the blasting of the parapet alerted him to something else going wrong. Garus has never trusted House Guernicus as much as House Guernicus would've liked. You might be suprised to know I had something to do with that, well, actually, credit goes to the lovely Carmine. So now, Valerian, the only thing left for you here is revenge. Come get it." All of that goes out loud enough for everyone to hear, including those in the courtyard below.
We are at iniatiave point 5, and Alexei's action has been deferred. Once I'm clearer on what Alexei and everyone else are doing, I'll resolve the action to follow.