While volunteering at the local zoo, Robyn, Nick and Trevor learn that grizzly bears are being poached.

The bears' gallbladders are being removed for use in alternative medicine. Always ready to solve a mystery, the kids set out to find the poachers. Bear is not only big game, they learn, but big money to poachers. The stakes are high and the suspec …

Liza, determined to prove that her mother's boyfriend is no good, starts researching the oil company he works for.

Liza discovers a lawsuit against the company for compensation that is long overdue to Guatemalan farmers. She starts a group at school called GRRR! (Girls for Renewable Resources, Really!) and launches an attack on Argenta Oil. As her a …

Left alone for the first time on the island he calls home, Simon is looking forward to a day of personal indulgence.

Simon's sister Ellen only wants to make sure they get their chores done. Their parents are busy trying to convince the government not to close the lighthouse that the family operates, and it's up to the kids to make sure everything ru …

Keegan Bishop, championship skier, is almost injured by a wire strung across the ski run.

Snowboard tracks leading away from the trap are the only clue as to who might be responsible. Keegan teaches himself to snowboard so he can find the culprit on the snowboarding slopes. When Keegan discovers that someone has been stealing snowboards and skis at …

Would-be detectives Trevor, Nick and Robyn are hot on the trail of a sandwich thief when they learn that more than food has been going missing at school.

A valuable hockey book has been stolen from the library, and the kids worry that the librarian might lose her job if it isn't found. Who would steal a hockey book? Could it be Robyn's arch-nemesis …

It's hard being an animal lover in a fishing family.

Fourteen-year-old Maya sneaks out in her kayak before breakfast every morning to check on a family of sea otters living in the nearby bay. The animals Maya loves threaten her family's main source of income, and Maya doesn't know if she can trust her family not to hurt them. She is determined to pr …