For this battle, we are taking a trip into the underworld of the Realm of Death, where the Stormcast Eternals have been sent to reclaim the bodies of Sigmar's fallen War-Priests.
The Story So Far
Early in the Realmgate Wars, the forces of Sigmar fought hard to wrest a Realmgate known as the Arch of Bones from the armies of Khorne. This was a an important strategic Realmgate that led to the Realm of Death and while Sigmar's armies were successful, many of his War-Priests died in the attack. However, Nagash is a jealous god who refused to allow their bodies to return to Azyr. Unwilling to allow those who fought with such devotion and heroism to rest in the hands of Nagash, Sigmar dispatched a force of Stormcasts to bring them back to the Celestial Realm.
Leading this force was Lord-Relictor Dedrac, the Stormcasts entering the Arch of Bones to traverse the warrens of the Penumbral Vault to find the resting place of the War-Priests, a dais within the Dragonfate Chamber.
However, the cast off necromantic forces of Nagash soon became aware of the intruders and they raced to stop them, eager to demonstrate their devotion to the Lord of Death. Spirit Hosts were soon joined by Crypt Ghouls, the harbingers of Ghoul King Marrowthirst. The bone-bound gates of the chamber were sealed, cutting off the retreat of the Stormcasts, leaving them no choice but to battle the dead and, maybe, raise the spirits of the War-Priests to fight once more.
For the full report and lots more piccies: link