Lydia was still biting her lip, her brow furrowed for a moment as she thought. Then a quick nod, squeezing Ira's hand. "Keep an eye on me." This was one way she could be very useful, and she was the most used to cold of any of them...

Another squeeze, and then she's letting go of Ira's hand. A few steps out, before summoning up the transformation to her bat-form with a small jump into the air. Tiny, but trusting her friends--she's circling once, before flapping towards the object to try and see what she can sense or tell from the air. The advantages to being a bat were that she could be small and agile--and well, if it went badly--she WAS a vampire. She'd come back.