The End Times by Phil Kelly

In Sylvania, Mannfred von Carstein hopes to turn the tides of fate and battle by accomplishing what no sorcerer ever has – the resurrection of Nagash, Lord of the Undead. But there are forces at work that would stop him from reviving the Great Necromancer at any cost.
And as the hordes of Chaos gather in the north, it falls to Reiksmarshal Kurt Helborg – reeling from the tragedy of battle – to return to the Empire's capital of Altdorf and prepare to meet the plague-ridden enemy in a climactic struggle for the ancient city.
CONTENTS
– Sigmar's Blood, a novella by Phil Kelly
– The Return of Nagash, a novel by Josh Reynolds
– The Fall of Altdorf, a novel by Chris Wraight
– The Bone Cage, a short story by Phil Kelly
– With Ice and Sword, a short story by Graham McNeill
– Marienburg's Stand, a short story by David Guymer