I nodded. "Definitely," I said. "I'm Cassie. And I have a plan to help you sneak out." Maybe it would be as easy as walking out the front door, but the librarian was giving us funny looks, so I didn't want to press our luck.

"I saw this really cool bird outside. If I open the window, I bet I can get it to fly in here. Then, while it's flapping around like crazy, you can sneak out the window. Just make sure nobody sees me at the window, okay?" There wasn't any bird outside. But there was about to be, if this worked.