The time Sonic the Hedgehog visited the God Emperor in the Warhammer 40,000 Universe[Coming at some point in the future]

When a catastrophic Chaos Emerald surge collides with a Warp storm, Sonic is accidentally flung into the grimdark universe of Warhammer 40,000, emerging on Holy Terra itself at the foot of the Golden Throne. Mistaken at first for a xenos anomaly or Warp-spawn, Sonic is hunted by the Inquisition and nearly obliterated by Space Marines before the Emperor of Mankind psychically intervenes, sensing that Sonic exists entirely outside the Warp’s corruption. Through fragmented visions and impossible speed, Sonic learns of humanity’s endless war, the decay of the Imperium, and the Emperor’s eternal imprisonment as a living beacon holding back Chaos. In the second half, Sonic becomes an unlikely catalyst for hope, racing across battlefields and Warp rifts to disrupt Chaos incursions in ways no conventional force can, since his power does not draw from the Warp at all. In a rare moment of direct communion, the Emperor reveals that Sonic represents a form of freedom the 40k universe has forgotten: movement without destiny, action without damnation. Though Sonic cannot save the Imperium, he helps stabilize a critical Warp breach, briefly easing the Emperor’s burden before being hurled back to his own dimension—leaving behind a legend in Imperial records of a blue spirit who outran Chaos itself.