|This article is about the Novel by Aaron Dembski-Bowden; for the Hive City, see Hive Helsreach.|
|Series||Space Marine Battles|
|Preceded by||Rynn's World|
|Followed by||Hunt for Voldorius|
|Collected in||War for Armageddon: The Omnibus|
Helsreach is the second novel in the Space Marine Battles Series. It was written by Aaron Dembski-Bowden and published in 2010. It was republished in the Armageddon (Anthology) alongside Blood and Fire (Novella) in 2013 and within the War for Armageddon omnibus in 2018.
When the world of Armageddon is attacked by orks, the Black Templars Space Marine Chapter are amongst those sent to liberate it. Chaplain Grimaldus and a band of Black Templars are charged with the defence of Hive Helsreach from the xenos invaders in one of the many battlezones. But as the orks numbers grow and the Space Marines dwindle, Grimaldus faces a desperate last stand in an Imperial temple. Determined to sell their lives dearly, will the Black Templars hold on long enough to be reinforced, or will their sacrifice ultimately be in vain?
Set during the Third War for Armageddon, Helsreach follows Grimaldus, the newly promoted Reclusiarch of the Black Templars. Leading a group of Black Templars, and supported by the 101st Armageddon Steel Legion and titans of Legio Invigilata, he is tasked with the defense of Hive Helsreach from the Ork invasion.
Other characters and sub-plots include a Black Templar Techmarine attempting to gain access to and activate Ordinatus Armageddon for use in defense of the hive, an Armageddon Steel Legion stormtrooper, the command crew and priest of the Imperator Titan Stormherald, and Astra Militarum staff officers overseeing Helsreach's defence.