When fourteen-year-old Annie buys a horse at an auction of mustangs she is thrilled to finally have a horse of her own at Colorado's Top Tier Stable, where she volunteers in exchange for riding lessons--but then someone sets the barn on fire, and Annie struggles to save the horses boarded there, and find out who is responsible.

For Arlo Finch and the Rangers of Pine Mountain Company, summer camp is more than canoeing and hiking. It's also a chance to search for ancient forest spirits and discover mysterious messages encoded in tree bark. But when Arlo and his best friends Indra and Wu stumble upon clues about the long-lost Yellow Patrol, Arlo uncovers a stunning history that leads right back to his very own family.

Hunter's life revolves around his video games, more video games, and still more video games. Growing up in downtown Denver was the perfect place to live unnoticed from the rest of the world. But Hunter's life suddenly changes when his dad is laid off from his job and their family is forced to move in order to make ends meet. Trying to get back on their feet, Hunter's family relocates to the wild mountains of Colorado, far away from the city life Denver...