Standiford, Natalie

When her younger brother Dan's life hangs in the balance, Amy Cahill must make a terrifying decision between saving him by unleashing a dangerous evil into the world, or losing him forever. Includes six game cards and a link to additional online information about "The 39 Clues" series.

When Minty sees a flash in the woods, she chases after it to find the mysterious Secret Tree where the secrets of everyone in the neighborhood are stored in its hollow trunk. When Raymond joins her at the Secret Tree, they embark on a venture to solve the mysteries revealed there.

In a story told in letters, when Claire's best friend moves away just before the start of fifth grade, Claire becomes the only girl in her tiny island elementary school--and suddenly boys she has been friends with her whole life turn into resentful, bullying strangers.

Dan and Amy find themselves in a life or death situation, that may involve invoking a great evil.

Lavender sees herself as the miserable but tough outsider at school, while Scarlet knows she is talented and popular, but insecure on the inside--then, on their mutual thirteenth birthday, they wake up in each other's bodies and are forced to learn what it means to walk in someone else's shoes.

Upon learning on Christmas Day that their rich and imperious grandmother may soon die and disown the family unless the one who offended her deeply will confess, each of the three Sullivan sisters sets down her offenses on paper.

Describes the Cardiff Giant hoax, in which people of upstate New York were fooled into believing that the petrified form of a giant human being had been uncovered from the ground in 1869.