while the superheroes put out the fire, batman sends mystery inc. to a diner to rejoin them later. following the gang's questions, he reveals the tale about his single unsolved case. many years ago, at the start of his crime-fighting career, batman attempted to stop professor milo from completing an experiment with faulty teleport technology. however, the vortex created by the device killed one of milo's assistants, leo scarlett, a failure that has haunted batman since that time. they conclude that the likely suspects behind the crimson cloak would be either sam scarlett, leo's father, or riddler.