Harriet's Big Adventure is the second book in the Harriet the Miniature Donkey series by Glenn S. Guiles for children. It's a beautiful spring day and Harriet is looking for something exciting to do. When Mr. Michael accidentally leaves the gate unlatched, this gives Harriet the opportunity to leave her barn and go on a big adventure. Read Harriet's Big Adventure to find out where she goes and who she meets!