In April 2019 in Ellis, Columbia State, Grade 5 students Mitchell "Mitch" Carter, Mike Brock, and Morgan Lamb are walking to their treehouse in the woods nearby after school. As soon as they reach the main trail, they hear gunshots, and rush to find out what happened. When they get to the scene of the crime, they discover the body of Jeremy Diggins, an accountant with Eckstein's Goods who used to do forensic accounting in Alford, Pulford State. The...