"The Dynamic Duo, Batman and Robin, team up with Scooby-Doo and his mystery busting friends the Mystery Inc. When Scarecrow attacks using his fear gas, only humans are affected, leaving Batman, Robin and the Mystery Inc. gang trapped facing 'monsters' from their own imaginations. Now, it's up to Scooby-Doo and Ace the Bat-Hound to save the day!"--Provided by publisher.
General Note: LSC 15.99"Originally published in single magazine form in Scooby-Doo Team-up 1-6"--Title page verso."Batman created by Bob Kane ; Wonder Woman created by William Moulton Marston ; Superman created by Jerry Siegel and Joe Shuster... ; Supergirl based on the characters created by Jerry Siegel and Joe Shuster."