Ring and Asia Wilde's life is anything but ordinary. Some of their closest friends are endangered monkeys and rare birds. Instead of attending middle school, they accompany their parents (scientists who work to save endangered species) on adventures around the world. They spend more time climbing trees, tracking animal prints, and taking on three-hundred-pound anacondas than they do filling out worksheets. But a research trip to the Amazon rainforest...

The fourth book in the CAHILLS VS. VESPERS series, the follow up to the worldwide bestseller THE 39 CLUES.

After pulling some spectacular heists, Amy and Dan have become two of Interpol's most wanted criminals. So when Vesper One orders them to steal the world's largest diamond, they know they're facing life in prison . . . or worse. But with the Cahill hostages still in peril, Amy and Dan have no choice but to launch a mission that leads them...

Chase, heading south of the border with Nicole Rossi, faces a threat to his survival while searching for the Rossi Brothers' Circus after an earthquake in Mexico.

A fourteen-year-old boy attempts to be the youngest person to reach the top of Mount Everest.

Fifteen-year-old Peak Marcello is invited to participate in an "International Peace Ascent" in the Hindu Kush, with a team made up of under-eighteen-year-old climbers from around the world--but from the first something seems wrong, so when the group is attacked, and most of the climbers are either killed or kidnapped, Peak finds himself caught up in a struggle to survive, shadowed by the Shen, a mysterious snow leopard.

"The president's daughter has been kidnapped by the elusive and lethal Ghost Cell. Quest (Q) and Angela are in hot pursuit with vicious winds and blinding rain thwarting them at every turn"--Provided by publisher.

"When Quest (Q) and his stepsister Angela head to Chicago for their parents' concert, they uncover another plot by the terrorist group Ghost Cell in the Windy City"--Provided by publisher.

Nick's father and others are taken prisoner when his plantation in Burma is invaded by the Japanese in 1941, leaving Nick and his friend Mya to risk their lives in order to free them from the POW camp.

With the nation reeling from the recent terrorist attacks, Q and Angela leave Chicago and arrive in San Francisco. Their parents are determined to continue the Match tour but for safety's sake, they have decided to send Q and Angela to boarding school. Not happy at the thought of being taken off the trail of the ghost cell, Q and Angela race against time with Boone and the SOS team to find Number One, the leader of the world's most feared terrorist...