Title: Runaway horse!
Description: Jim and Barney are in trouble. The boat's engine won't start and they've got to get to Jim's grandson's birthday party. The solution is an old-fashioned one. Jim borrows Puzzle, a big, strong horse to give them a tow. But when Puzzle is startled and gallops off, it's up to Barney to find him.
Subjects: Horses, Boats and boating, Juvenile fiction, Dogs