Prospero: The Lost City of Sorcerers

Before it became a byword for loss, Prospero was a jewel - a world of learning and light where the most gifted minds of humanity gathered to study the deepest mysteries of the universe. It was the home of the Thousand Sons and their sorcerer-primarch, and for a brief and shining age it seemed a beacon of what mankind might one day become. Then the Space Wolves came, and Prospero was given to the fire.

The Shining World

Prospero was a remote and isolated world granted to the Thousand Sons as their homeworld and fortress. More than a mere fief, it became a great repository of knowledge, and above all of forbidden lore concerning sorcery and the workings of the Warp. Where the wider Imperium feared the psyker, Prospero embraced the gifted and sought to master what others would only suppress.

Under the guidance of its primarch, the world drew scholars, seers and remembrancers from across the young Imperium. It was a sanctuary of intellect in an age of conquest, dedicated to the patient pursuit of understanding rather than the waging of war.

Tizca, the City of Light

The crown of Prospero was its capital, Tizca, the City of Light. It was a place of breathtaking beauty, raised in white marble and gleaming glass, its pyramids and slender spires blazing beneath the sun. At its heart lay the great libraries, and within them the accumulated wisdom of the Thousand Sons - an intellectual treasure without equal anywhere in the Imperium.

Tizca was a city of scholars, cults of learning and quiet contemplation, ordered into fellowships devoted to the study of the arcane. To walk its radiant avenues was to move through the finest achievement of the Thousand Sons, a monument to knowledge raised in defiance of a superstitious galaxy.

A Sanctuary for the Gifted

Prospero was not naturally kind to its inhabitants. The world was plagued by the psychneuein, insectile psychic predators that hunted the minds of the sensitive, and the survival of Tizca depended upon its people's power to raise telekinetic shields that held these horrors at bay. In this way the city's brilliance and its peril were forever intertwined.

For the psykers of the wider Imperium, so often feared and hunted, Prospero was a rare refuge. The Thousand Sons gathered such gifted souls to themselves and taught them to harness their powers rather than fear them, building a civilisation in which the psychic arts were cultivated openly. It was a noble dream, and a dangerous one.

The Seeds of Ruin

That danger came due when the Imperium turned against the sorcerous arts. At the great Council of Nikaea the use of such powers was condemned, and the Thousand Sons were commanded to abandon the very practices upon which their culture was built. Their primarch, believing his hard-won knowledge too precious to surrender, could not fully comply.

When he uncovered the treachery of the Warmaster Horus, the primarch Magnus used forbidden sorcery to hurl a warning across the galaxy to the Emperor. But the desperate spell tore through the Emperor's most secret work and shattered its protective wards, undoing years of labour in a single stroke. What was meant to save the Imperium instead marked Prospero for destruction.

The Burning of Prospero

Enraged and betrayed, the Emperor dispatched the Space Wolves to bring the errant primarch to account. But the cunning of Horus turned a mission of arrest into one of annihilation, and the Wolves descended upon Prospero not to summon its master home but to scour his world from existence. Alongside them came the Silent Sisters and the Emperor's own golden Custodians.

The assault, remembered ever after as the Burning of Prospero, fell upon a people who were not ready for it. Tizca's shields were thrown down, its libraries put to the torch, and its warriors slaughtered amid the ruin of everything they had built. The City of Light burned, and the knowledge of an age burned with it.

Ashes and Exile

As his world died around him, the primarch faced the Wolf King in a duel that ended with his own body broken. Rather than watch his Legion and his life's work perish utterly, Magnus accepted the bargain he had long resisted and turned to the Dark Gods for salvation. In a final act of desperate sorcery, he tore the surviving remnants of Tizca - his warriors, his people and his precious libraries - out of realspace and cast them into the Eye of Terror.

There the survivors made their new home upon the daemon world called the Planet of the Sorcerers, and the Thousand Sons passed forever into the service of Chaos. Prospero itself was left a scorched and silent husk, a graveyard of marble and ash - the shining world remembered only as the price of one primarch's pride.