Superman Klassik #4

In "Die Versammlung!", the fate of multiple Earths hangs in the balance as Pariah is forced to witness the collapse of universes one by one. With Earth-3 on the brink of annihilation by an anti-matter wave, the Crime Syndicate—Ultraman, Power Ring, Owlman, Johnny Quick, and Superwoman—find themselves powerless as their world crumbles. Meanwhile, the Monitor enlists Lyla to become Harbinger, summoning a fractured assembly of heroes and villains, including Superman [Kal-L], Green Lantern [John Stewart], Firestorm, Cyborg, and others, to the Monitor’s satellite. There, they face a terrifying assault by shadow demons before the Monitor reveals the true scope of the coming threat.

In "Gegen die Zeit," the heroes of the Legion of Super-Heroes and Earth's mightiest champions are scattered across time and space as the Monitor's satellite goes into crisis mode, racing to protect the tuning forks that stabilize reality on Earth-1. Amid the chaos, a hidden enemy manipulates shadowy forces—among them a corrupted Harbinger—working in secret to undo their efforts, all while the fabric of time itself begins to unravel.