Craig McElhaney, a young all-star defenseman with the Western Hockey League, decides to investigate when a series of odd incidents threatens to derail his team's chances to make the playoffs.
Archie Wiggins and the other members of the Raven League are thrilled when they meet Buffalo Bill Cody himself, but when a policeman is attacked and Buffalo Bill is the prime suspect, the Raven League vows to prove Bill's innocence.
Fifteen-year-old Brodie embarks on a desperate rescue mission when his father falls overboard from their small yacht in the middle of the night, and Brodie learns he has been mistaken for a wealthy businessman and is being held for ransom.
After his friend Will, a pickpocket in London in 1715, is murdered as part of a series of mysterious deaths, fifteen-year-old Tom Marlowe asks his friend Dr. Harker to help find the killer.
While at St. John National Park in the Virgin Islands for a seminar on coral reefs, the Landons help a wealthy thirteen-year-old to find his birth mother, who he believes is in danger.
Twelve-year-old Jack and his younger sister visit Mesa Verde National Park, where they delve into the park's history while gradually uncovering the mysterious past of their family's teenage foster child Lucky.
While their parents study why wolverines are disappearing from Alaska's Denali National Park, Jack and Ashley are stranded in a remote area with their mysterious new foster brother when a hit man's bullet triggers an avalanche.
Still living on the same Virginia plantation after the Civil War ends, thirteen-year-old Abby Joyner struggles to find the truth behind the disappearance of her mother.
