A band of Hobgoblins are on the loose in Boston, snatching purses. Mystery Inc is called in as they use Shaggy as a decoy to lure out the hobgoblin as they run him to ground to discover that the hobgoblin was using carnival fun mirrors to snatch purses so that the victims would always see two different goblins.
The first Scooby-Doo mystery while not fairplay still with unexpected scenes and genuine humor energizes a classic magician's trick. Mr. Tyler as usual creates monsters--read persons in masks--based upon legend.
Besides folklore, Mr. Tyler considers the police involvement during the case. His two cops are amusing send-ups of Mulder's and Scully's varying attitudes. At one point the believing officer who Joe Staton draws as stuck in the seventies says "I'm just remaining open to all possibilities."
The rest of the artwork by Mr. Staton who with an unparalleled feel for the characters portrays dimensions both physical and emotional for Scooby and the Gang. The scene where Daphne and Velma tease a Shaggy soon to be in drag is particularly noteworthy for its novelty and comic timing.