More Fun Comics #65 (1941)

A magician named Dr. Mephisto is performing to a packed hall when suddenly the lights go out and a cowled figure covered in ethereal fire, the Blue Flame, appears. Once the lights go back on, rich patrons realize they've been robbed. Soon a bank messenger reports being robbed by the mysterious Blue Flame as well. Detective Corrigan uses his otherworldly powers to look into the past and identify the car the Blue Flame used, learning it belongs to a crook named Jimmy Groggins. Groggins attacks Corrigan when the cop shows up to interrogate him, but is unimpressed when the Spectre turns the hood's knife into a charm on a necklace, and even when the ghost grabs him and flies them both to Mars. Then a Martian dinosaur appears and swallows them both, making Groggins finally break down and tell them where the hideout of the Blue Flame's gang is. After ordering Groggins to give himself up to the police, Spectre goes to this hideout and learns where Blue Flame will rob next. He masquerades as the hoods' boss to send them to rob the policeman's ball instead, then goes to a wealthy social gathering where Dr. Mephisto will be performing. Corrigan is convinced of Mephisto's innocence. However a stolen bracelet ends up on his wrist after the Blue Flame attacks. The Spectre easily captures Blue Flame when he meets with one of his flunkies to collect some loot, and unmasks him as Dr. Mephisto.