Young Cam Jansen and the Library Mystery,Amazon.com: Cam Jansen 6 Book Set (Mystery of the UFO, Television Dog, Babe Ruth, Stolen Diamonds, Dinosaur Bones, Gold Coins): 9780545216760: David ,Young Cam Jansen,Cam Jansen 33 Book Collection Set : Includes Books 1-33 Titles Listed in Description: David A. Adler: 9781608840663: Amazon.com: Books,Cam Jansen 33 Book Collection Set : Includes Books 1-33 Titles Listed in Description: David A. Adler: 9781608840663: Amazon.com: Books