Macha - Tartarus: When an Imperial excavation team on the Imperial Civilised World of Tartarus uncovered a Chaos marker that leads to an ancient artefact called the Maledictum, Macha mobilised a small Eldar force to ensure that the ancient artefact she had left buried on that world was left undisturbed. The Maledictum was a prison built by the Eldar millennia before to contain a powerful Greater Daemon who had been rampaging through that sector of space. Unfortunately, the Alpha Legion Chaos Sorcerer Sindri Myr was also keen to acquire the power of the Maledictum to ensure his own ascension to Daemon Prince, and so set in motion a scheme that would uncover the artefact and unlock its power for himself.The Forces of Chaos were now aware of the existence of the Chaos marker and of the artefact itself. A warband of Chaos Space Marines drawn from the Alpha Legion, led by the Chaos Lord Bale, made planetfall upon Tartarus before the Imperial forces ever responded. The world's defenders had sent an astropathic distress call to the Imperium after Tartarus had been assaulted by an Ork WAAAGH! led by the Warboss Orkamungus which had been enticed to invade the world by Sindri Myr to serve as a cover for the Alpha Legion's pursuit of the Maledictum. The forces of the Imperial Guard soon responded to the Greenskin assault, but the conflict with the Orks kept the Imperial forces engaged while Bale and his Chaos Space Marines worked unseen to recover their prize. Farseer Macha knew that the Orks' WAAAGH! was tied in some manner to the presence of the ancient artefact, and was adamant that the Forces of Chaos could not be allowed to obtain the Maledictum.Inquisitor Mordecai Toth of the Ordo Malleus had also long been searching for some time for the dark artefact. Farseer Macha, always contemptuous like most Eldar of the willpower of humans in the face of the temptations of Chaos, believed that the Imperium, even its Inquisition, could not be trusted with the handling of the Maledictum. As such, she deployed with a force of warriors from Biel-tan to Tartarus to reclaim the Maledictum and keep it out of the easily corrupted hands of Mankind.Four armies then came together on the planet Tartarus: the invading Orks, the defending Imperial Guard and their Space Marine allies amongst the Blood Ravens Chapter, the insidious Chaos Space Marines of the Alpha Legion, and the enigmatic Eldar of Biel-tan. Using her potent psychic divination abilities, Farseer Macha tried to formulate a battle plan that would keep the Maledictum safe.The Maledictum required the recovery of a special key to unlock it. Captain Gabriel Angelos and his 3rd Company of the Blood Ravens, who had been assigned to assist the Imperial Guard in throwing back the Ork invasion of Tartarus, had also learned of the existence of the Maledictum in the course of the campaign. The Blood Ravens wanted to find and destroy it in order to keep it out of the hands of the Forces of Chaos which they had learned were also operating on the planet. In a desperate attempt to guard the key, Farseer Macha called upon the Eldar War God Kaela Mensha Khaine and one her Eldar Exarchs made the ultimate sacrifice to become the Avatar of Khaine. Unfortunately, it had been Sindri Myr's plan all along for the Eldar and the Blood Ravens to meet in combat. Whilst the Eldar and the Space Marines were distracted fighting each other, Sindri stole the key. To make matters worse, the Avatar of Khaine was eventually slain by the Space Marines, leaving the remaining Eldar forces on Tartarus after the battle greatly weakened.Like a skilled puppeteer, Sindri masterfully controlled the tides of battle. The Chaos Sorcerer even orchestrated the demise of Lord Bale so that he could command the Chaos Lord's warband as his own and he ultimately acquired the Maledictum by corrupting the Blood Ravens' Librarian, Isador Akios.Farseer Macha soon realized that her destiny and Gabriel Angelos's destiny were intertwined, and it was folly to try and deny it. Farseer Macha was forced to use her remaining Biel-tan forces to support Angelos and his Blood Ravens as he assaulted Sindri and the forces of the Alpha Legion in a final attempt to take the Maledictum back from the servants of the Ruinous Powers before they could unleash its power.The Maledictum granted Sindri the rank, powers, and form of a Daemon Prince. With the support of Macha's Eldar, his fellow Blood Ravens, and the Daemonhammer God-Splitter gifted to him by the Inquisitor Toth, Gabriel was ultimately able to destroy the ascended Sindri in single combat.But Macha's hopes and renewed faith in Mankind were dashed when, urged on by Toth, Angelos ignored her warnings and destroyed the Maledictum with God-Splitter, accidentally setting the Greater Daemon of Khorne kept imprisoned within the stone for millennia free. Farseer Macha told Angelos that his actions had damned them all, before departing from Tartarus with her small Eldar force as a Warp Storm moved to engulf the ravaged world.