In 1943, a postal inspector defied orders and mailed Nikola Tesla’s final invention into the world.

What followed was a technological upheaval that rewired history. From wireless-powered battlefronts to glowing city streets, from rogue backyard coils to Cold War skybeams, the hum of energy reshaped the twentieth century. But with progress came consequences—fragile grids, militarized resonance, and a vanished woman known only to history as “the Ozone Angel.”

This is Delta-58. Tesla’s Legacy Freed.

A single envelope. A lifetime in hiding. A world transformed.

Would you undo it?

Not this time.