Packed with fascinating facts about real places and pieces of art, this fast-paced thriller is perfect for fans of the Spy School and Mr. Limoncello's Library series and Dan Brown. No matter how dangerous his adventures have been, Art has always been able to count on his best friend, Camille. Now that Camille is meeting her estranged father, Art wants to be there for her-which means going to London. But Camille's history professor father, renowned...

Thirteen-year-old Colophon Letterford and her cousin Julian continue their quest to uncover their family's treasure as new clues lead them to Oxford, England, seeking to unravel a connection to Christopher Marlowe.