He flinches when Wren reaches for her sword, backs hastily out of range as she begins to unsheathe it, and doesn't immediately approach again when she extends the keys. The Venatori, he thinks, can take their combined impatience and shove it.

Fortunately, his reach is long, and he can swipe the proffered keys and shackles without venturing too far into blade range again. This done, he unlocks the cell, still with a sinking feeling in the pit of his stomach that this is where it all comes undone, that all of it was leading to this moment, with the senior templar incapacitated and both Venatori unshackled, capable of overpowering him easily in tandem if they want. All it would take would be one more spell from the younger one, just like the first, and then they can slaughter their way through the Gallows like abominations and flee Kirkwall with a trail of devastation in their wake...

The adrenaline of Wren's attempted attack has worn off, leaving him drained, but he's not taking chances. He gathers himself and reaches again, with every singing drop of lyrium in his blood, for a cold sheet of negation to wrap the magister in until the shackles can do the job for him. It settles around Atticus like a clinging haze, and Simon beckons him when it's safe. "No hard feelings, serah. You know how these things go." The words might ring just a bit truer if he were willing to act like Atticus merits a 'messere.'