Written by Scott Cunningham, Jack Briglio and John Rozum; Art by Roberto Barrios, Scott Gross and Karen Matchette; Cover by Ropert Pope and Scott McRae

April 22 is Earth Day, and Scooby and the gang are hunting down toxic trolls! But is there a crooked creature behind the mucked-up monsters? Do your part by helping to solve the mystery behind Fayetton River!