The 39 Clues is an adventure novel series where Amy and Dan search for the 39 Clues. The main readership is from 9 to 14 years old. This first series of 11 books tells the story of orphaned Amy and Dan Cahill, who discover that their family has influenced world history and has produced almost all the prominent historical figures of the past five centuries. * Volumes 1-3 are quite damaged. * Volumes 4-11 have no noticeable damage. * The box is not included. * Please check the attached images for the contents and condition of the items you are purchasing. Thank you for viewing.