Guardian of Secrets (Library Jumpers, #2)

Sure, jumping through books into the world’s most beautiful libraries to protect humans from mystical creatures is awesome. No one knows that better than Gia Kearns, but she could do without the part where people are always trying to kill her. Oh, and the fact that she and Pop had to move away from her friends and life as she knew it. But someone has to save the world from the upcoming apocalypse, and it looks like that’s going to be Gia. Maybe. If she survives.