It's... [Her voice falls to nothing as her eyes follow down Cross' chest and rest on the rosary planted there, and a hint of uncertainty visibly settles in her expression. She can't-- just make things disappear. And even something like converting the crucifix to a form that would allow air to pass... she's never tried it before.
Though, before anything can even be attempted, the problem is solved quickly and unexpectedly enough by Cross himself]
You idiot--! [She can't quite help it, even as she uses a stronger arte to offset his new wound. Putting aside the obvious gore, he's using up precious energy moving about-- she could have supported him enough for the trip to the hospital to make up for limited breathing-- so she tries to push down on the barrier to hold him, like Allen had been, but the hatching Tease puts an abrupt stop to that.