Läderlappen och Robin #9/1951

When an accident victim is found with two hearts, Läderlappen and Robin are drawn into a mystery that leads them to uncover a secret alien invasion from Saturn, with the help of Professor Efraim Cobb and Agent 7, while Commissioner James Gordon and the enigmatic Ekroft watch the shadows grow deeper.

In "Jokers misstagskomedi," the Joker, humiliated after a botched crime backfires due to his own error, vows to outdo himself by orchestrating a series of criminal stunts inspired by infamous historical blunders. With Läderlappen and Robin on his trail, he sets his sights on turning history’s greatest gaffes into real-life chaos—turning the tables on his foes with a spree of absurd, mistake-based mayhem.