Editing Shadowsun (section)

==The 3rd Sphere Expansion==
Shadowsun had the honour of leading the Tau Empire's Third Sphere Expansion, crossing the Damocles Gulf and attacking several Imperial Worlds. Although the Tau continued to make use of diplomacy, seen in the capitulation of the Lagann System, Shadowsun also engineered a number of military take overs. One part of her grander military offensive was to sacrifice the entire Zeist Sector, and all Tau living within it, to [[Cato Sicarius]] (as she probably realized she wouldn't stand a chance <s>against his plot armor</s> against him in combat) although its never made clear how much was actually gained from this move making it seem, at best, of questionable effectiveness.

The first major conflict of the 3rd Sphere Expansion came on the Hive World of Agrellan, a minor Imperium world, where Shadowsun lead the forces of the Tau Empire against a combination of Imperial forces including House Terryn, White Scars, Raven Guard and Catachan. Despite stiff Imperial resistance Shadowsun secure the planet for the Tau Empire, though an effective rearguard action allowed most of the Imperial forces to survive the battle and relocate to the nearby Knight World of Voltoris.

Shadowsun would pursue her foe to Voltoris but, ironically, end up falling into an enormous ambush which saw her army crushed and her own life almost ended. Shadowsun was forced to flee and the entire Tau Empire gave up on any attempt to conquer Voltoris, seeking to instead bypass it and head for the nearby world of Prefectia in the resource rich Dovar System.

On Prefectia Shadowsun fought a combination of familiar Imperial foes and even managed to ambush and slay the Raven Guard Chapter Master in a Ghostkeel Battlesuit (which for some reason she can't use in the game). Deprived of their Chapter Master, and with the Tau Empire on the offensive, the Imperial forces abandoned Prefectia to the Tau. Celebrations for Shadowsun's latest victory were short-lived, however, as the Imperium were already preparing a retributive strike against Agrellan.

When the Imperium struck Agrellan it caught the Tau by surprise, trapping both Shadowsun and Aun'va on the planet, whilst the Tau Fleet fled to gather reinforcements. Conflict broke out on the world itself, due to powerful shield generators preventing the Imperium from simply flattening the Tau from space, and Shadowsun was driven back, defeat seeming inevitable. However, at this moment, Commander Farsight and his forces arrived, managing to sneak completely undetected through the Imperial Blockade, and intervening to save Shadowsun and Aun'va. Although relations between the rogue commander and his former peer and superior were still frosty, they put aside their differences in order to confront their mutual foe. Working together Shadowsun and Farsight managed to confound their Imperial opponents, although an Assassin squad did manage to slay the Supreme Ethereal Aun'va and to critically injure Shadowsun, confining her to a Space Ship for the remainder of the conflict. The Imperium, operating on a deadline, determined that they would waste no further time against the Tau's resistance and began a general withdrawal, with only the White Scars resisting the command. Before completing their withdrawal, however, Mechanicus forces within the taskforce scorched Agrellan, killing all life not beneath a shield generator and set fire to the entire Damocles Gulf region.

In the aftermath of this bitter stalemate Shadowsun is weakened, the poison in her system leaving her ill, but she thanks Farsight for his aid by permitting him time to leave despite the orders of her superiors to capture him. Since then Shadowsun has presumably been stuck on Agrellan, with the 3rd Sphere Expansion grinding to a halt after capturing only 2 known planets.