Edge of the Abyss

The Nightstalkers were battered after marching through an artillery storm and facing down two of Jarvis' vampire thralls. However after coming under an auditory assault from a pair of Screamers and having the essence of his soul being tugged from his body by a host of Spectres, Jarvis was forced to flee the field of battle leaving his undead legions unsupported and to be surrounded and destroyed by the predatory Stalkers.