Heartwood Mountain: The Adventures of Wilder Good #8

When thirteen-year-old Wilder and his friends Sunny and Corndog go down to the river for a horse ride, something panics Corndog into running away. Wilder and Sunny reluctantly return home without him, and the next day a strange man comes to Wilder’s house looking for Corndog. He seems to know an awful lot about the small, red-haired, foster kid's past. So Wilder, Sunny, and another friend, Big, set out to find Corndog before someone else does. If they succeed, can the group of friends convi...