City of the Dead: Desolace Series IV

Upon their return from the post-apocalyptic realm of future Earth, Edward and the remaining members of his group destroy the portal to keep a never-ending flood of zombies from wreaking havoc on Desolace. They are reunited with their ghostly friend, Amber, but have no weapons or supplies and are forced to return to the town of Loknar to seek help. After enlisting the aid of the town guard, and their new friend, Jasper, Edward leads the group toward his home town, the city of Elysia.

When they arrive, Edward is saddened to see his once great city has been decimated. The lone surviving elder speaks to Edward of an incursion by the forces of darkness, which seems bent on completely destroying the largest city upon Desolace. Sending Edward and his faithful followers on a mission to the south, they soon discover a small town, seemingly forgotten and uninhabited for a very long time.

Was it the work of the Black Knight and his minions which has left the city streets littered with corpses? If so, will they be able to stop his madness before it consumes Elysia and everything Edward holds dear to his heart?