Will Hobbs

Rick, a fourteen-year-old foster child, escapes from a juvenile detention facility near Las Vegas and travels to Canyonlands National Park in Utah where he meets a bird biologist working on a project to reintroduce condors to the wild.

When news of the discovery of gold in Canada's Yukon Territory in 1897 reaches fifteen-year-old Jason, he embarks on a 10,000-mile journey to strike it rich.

After a sailing ship wreck, 14 year-old son of the lighthouse keeper, refuses to believe the authorities, who say there were no survivors. Unexplained footprints, theft at the trading post, and glimpses of a wild "hairy man" convince Nathan that someone is hiding in the remote sea caves along the coast.

Despite some reservations, sixteen-year-old Jessie joins her companions from the previous year's adventure on the Colorado River for a legal rafting trip through the Grand Canyon.

Sixteen-year-old Robbie Daniels, happy to get a job aboard a troller fishing for king salmon off southeastern Alaska, finds himself in danger when he discovers that his mysterious captain is searching for long-buried Russian plaques that lay claim to Alaska and the Northwest.

When North Carolina fourteen-year-old Dylan Sands joins his fifteen-year-old cousin Rio in running the Rio Grande River, they face a tropical storm and a fugitive kidnapper.