Devlin Quick will solve the case of the missing page of the vandalized book at the library. But her evidence seems unreliable. Liza, her friend, only noticed a tall, suspicious man accidentally drop a knife on the floor and stuff a page from a rare book in his jacket. But she doesn't know which book it was, what page it was, and nobody except Devlin and her friend Booker believe her. It's a good thing that Devlin has used her skills she learned from her Police Commissioner mom and her friend detective to help her solve the case. The book gives interesting glimpses in the life of detectives while keeping it appropriate for kids. It touches on traits like moral courage and friendship. I give this book 5 stars.