Läderlappen #1/1961

In "Läderlappsjätten," Batman and Robin are invited to Dr. Greggson’s lab to see his latest inventions—the Maximizer and the Minimizer—meant to aid Gotham’s police. But when the Maximizer malfunctions, Batman begins to grow uncontrollably, forcing him to leave the city to protect its citizens, leaving Robin and James Gordon to face a surge in crime.

In "Den mystiske mr. X," Gotham City is thrown into confusion as Batman and Robin appear in baffling new costumes and act strangely—until a mysterious figure named Blair Graeme emerges, threatening the Caped Crusaders. With Vicki Vale on the sidelines and a shadowy presence in the city, the truth behind the enigmatic Mr. X begins to unravel.