Warhammer 40k Helsreach

"(W) Aaron Dembski-Bowden When the world of Armageddon is attacked by orks, the Black Templars Space Marine Chapter are among those sent to liberate it. Chaplain Grimaldus and a band of Black Templars are charged with the defense of Hive Helsreach from the invaders. But as the orks' numbers grow and the Space Marines dwindle, Grimaldus faces a desperate last stand in an Imperial temple. Will the Black Templars hold on long enough to be reinforced, or will their sacrifice be in vain?"