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.

Twelve-year-old Chase and his friend Nicole Rossi attempt to rescue the Rossi Brothers' Circus--lions, tigers, elephants, and all--in Mexico, where a massive earthquake has struck, leading to the imminent eruption of a volcano.

"Mountain-climbing prodigy Peak Marcello faces his toughest challenge yet as he descends into Tibet and goes head-to-head with an old enemy"--

"Chase and his friends Nicole and Rashawn have just survived Hurricane Emily, the storm of the century, but their troubles are just beginning. Although they've made it to the safety of Nicole's family's farm--the winter home of the Rossi Brothers' Circus--the floodwaters are rising and they need to reach higher ground. The circus's lions have escaped their cages, and a dangerous and unpredictable leopard is also on the loose. Have Chase and his friends...