Magic School Bus Going Batty

by Joanna Cole Author

(From Amazon): The class is learning about nocturnal animals—creatures of the night. But Ralphie decides Ms. Frizzle is a vampire, and he's driving the rest of the class batty. That's when the Magic School Bus grows wings and flies into an old castle. If they hang around bats for a while, will they find out the truth about Ms. Frizzle?