Dawn of War (Novel)
The novel largely follows the events of the game, with some additional material added.
In 999.M38, a party of Eldar are on the storm-wracked planet of Tartarus, seeking to re-imprison an immensely powerful Daemon Prince, by summoning an Avatar of Khaine. However, they are interrupted at the crucial juncture by a Deathwatch kill team under the command of Inquisitor Jhordine, intent on recovering a fragment of the Avatar's sword as a potent weapon for the Imperium. They succeed, and the Eldar's Farseer, Macha, curses that the "mon-keigh" do not know the consequences of their actions.