When Alfie McQuinn, the notorious jewel thief, is killed on a job, his last words to his son, March, are to "find jewels," and this instruction leads the boy to Jules, the twin sister he never knew he had--and the perfect partner to carry on the family business.

Asked to locate a stolen necklace of unusual value, Nancy soon discovers that strange and dangerous people are responsible for the theft.

In the seventh novel in New York Times bestselling Stuart Gibbs’s FunJungle series, Teddy Fitzroy returns as FunJungle’s resident sleuth to solve the disappearances of endangered bison and an irreplaceable necklace. Teddy Fitzroy, his family, and some other FunJungle employees have been invited to visit a bison ranch just outside Yellowstone National Park that FunJungle’s owner, J.J. McCracken, is considering purchasing. But as usual, trouble...