He smiles thinly. Consciously or not, the Exarch has given away another weakness. So, perhaps he won't kill the girl now but when he feels more sure that it would lead to his imminent escape. Anything that consumes the Exarch's life quicker.

"Through your own hasty, ill-considered actions, you have created a situation wherein there is one more Ascian rather than one less." He laughs. "Enjoy your remaining time with her, Exarch. Pray that you find your ideal world before I break free."

Turning aside, he strides off and fades out of sight. There is a low, crystalline hum from the walls that sound suspiciously like he's still laughing.