Superman #20/1980

In "Herzkranke Welt!", Deadman, wrestling with his fate, is persuaded by Rama Kushna to linger on Earth a little longer to witness a strange phenomenon: a man with a failing heart has built a revolutionary pacemaker linked to the planet's core, and now his weakened pulse is spreading across the globe. As gangsters target the device for theft, Superman and Deadman must work together to stop the escalating crisis—before the Earth itself begins to falter.

Robin sets out to uncover the truth behind the mysterious man in black who's been shadowing him, only to discover the enigmatic figure is actually a bodyguard sent by Mr. Lloyd, the lawyer handling his late father's affairs. As secrets from the past begin to surface, Robin must navigate a web of hidden intentions involving Mr. Lloyd, Lucius Fox, and a young woman named Jennifer, all while the boy from Gotham faces a mystery that tests his trust in those closest to him.