Tuchulcha

The Tuchulcha Engine, or simply Tuchulcha, is an ancient sentient device and possible Warp entity. Of unknown origin, Tuchulcha is part of a triumvirate of similar entities (Ouroboros and Plagueheart) which when combined can create a rift that bridges space and time. On its own, Tuchulcha is capable of extremely efficient, precise, and accurate Warp jumps.

Tuchulcha was first discovered by the Primarch Solaris in the time before the Great Crusade, hidden upon the Alpha-grade Psy-moon known as the Mantle of Deliverance in orbit of the Primarch's homeworld of Noxim. In these early days, Solaris confided in the warp entity, Tuchulcha never speaking a falsehood to the Primarch, though it did not always tell the whole truth even so. In this manner, Solaris became to rely on it more and more, taking its council over any others, and eventually beginning to demand more from it, answers about its very being. This Tuchulcha was more than happy to provide, spoonfed one morsel at a time to the ravenous Primarch.

In the end, a half truth was uttered, a singular word that would set in motion so many terrible events, but would served Tuchulcha's true purpose. That word was Chaos, and the effect it had upon Solaris was immense. Worlds burnt, innocents died or worse, and eventually the Supernal Seraphs clashed with the Angelis Noctem, two halves of the Celestial Host hurling themselves against one another as Solaris clashed with Nocterra, Tuchulcha watching with utterly impassive glee, its plan coming to ultimate fruition. As the two Primarchs fought, Tuchulcha spoke to Nocterra and Nocterra alone, whispering in her mind as it betrayed Solaris without a secon thought. In truth, it had never wished to serve Solaris, the solar primarch unworthy of its attention, but in Nocterra, Tuchulcha found a worthy Mistress to serve. Everything it had done was in service of this goal, and at the apex of the colossal duel, Tuchulcha spoke of a path to victory, Nocterra sensing the utter truth in what he said and acting without thought. Subconsiously aided by Tuchulcha, Nocterra drew the full extent of her power through the amplifying nature of the Mantle of Deliverance, unleashing the energy into Solaris and overwhelming her twin, unwittingly banishing him into the warp, Nocterra believing him destroyed utterly.

In the wake of the victory, an event to be shrouded in secrecy behind the singular title, the Black Star Rift, Nocterra took ownership of Tuchulcha's physical entity, installing it within her flagship, the Blade of Salvation, just as Solaris had done in his flagship before hand. Here, Tuchulcha demonstrated the full extent of his power, assisting the Angelis Noctem fleet with otherwise impossibly accurate warp jumps, the legion able to appear over a planet in a heartbeat and disappear in the same. It was purely through Tuchulcha that the Angelis Noctem were able to remain a viable military force throughout the Rangdan War and Great Secession, striking seemingly impossible targets with ease, Nocterra allowing the myth to spread that this was thanks to her own powers, Tuchulcha willingly remaining a secret known only to the Dark Lady and the Sentinel Council.