Editing Tialoc Ekans (section)

==Horus Heresy==

[[Horus]] knew of the [[Desert Fangs]]' service record against [[Chaos]], and perceived that, if they interfered with his rebellion (what would later be called the [[Horus Heresy]]), things would [[Not as planned | not go as planned]].  To forestall such an event, he told Tialoc that [[Rachnus]] was a traitor, and instructed him to go to the Desert Fangs' homeworld of [[Voralia]], arrest Rachnus, and annihilate the Desert Fangs.  Because of his trust in Horus, Tialoc did not think twice before accepting the mission.

Tialoc's fleet was interrupted by the Desert Fangs; [[Alpharius]] (or [[Omegon]]) had warned Rachnus that Voralia was in danger.  As the Sky Serpents were already in orbit, the Desert Fangs chose to fire a few shots and flee, hoping to draw the Sky Serpents after them; Tialoc did not fall for the ruse, and waited until Voralia was leveled before giving chase.  This delay was not wasted by the Desert Fangs.  When the Sky Serpents' fleet arrived at the remnants of the Isstvan system, they were ambushed and annihilated, save for Tialoc; it was only a last-minute decision by Rachnus himself that spared him.

Tialoc had already been deeply shaken over the bloodbaths he had witnessed on Voralia and around Isstvan, and learning that he had been manipulated by Horus all but destroyed him.  He had been duped into murdering an innocent world, bringing about the ruin of two Legions, and, as he had caused the Desert Fangs to be diverted from the initial attack on Isstvan, possibly destroyed the only chance of averting galaxy-wide civil war.  He spent much of the journey to [[Terra]] in meditation, and decided to redeem himself and his Legion by participating in the Desert Fangs' final assault on the ''Vengeful Spirit'', [[Horus]]'s flagship.  He took a different path from the [[Desert Fangs]] strike force; he did not find Horus, though he fought his way through thousands of [[Chaos Space Marines | Traitor Marines]] before the psychic backlash of Horus's death caused the ''Vengeful Spirit'' to disintegrate.