Without any other real choices, Signum sighs slightly within the bubble of force. Aibghalien's magic really was of a different kind than hers, so she'd have to resort to using some of the Book's precious energy. She'd absolutely have to capture his now, or this fight would have been a waste.

Signum closes her eyes and brandishes the heavy tome she's carrying within the bubble, opening it and chanting inaudibly. Text and formulae disappear from five of its pages as they flip in an obviously sourceless wind and fill the sphere with a flash of light, disintegrating the astral fabric of the spell and leaving it shattered, and leaving a very irate Signum standing there and snapping the Book shut.

"I hope you're happy. You cost me five whole pages. That's more people I'm going to need to attack now."