The Zombie Knight Saga - Volume One - Elegy for an Immortal By George M. Frost
A young man dies, and a grim reaper offers to revive him in exchange for servitude. Responsibilities include saving other people’s lives and occasionally fighting unspeakable horrors. But this particular young man already has a few problems of his own, such as crippling shyness. No, seriously. He can barely even speak to people. It's really bad.
Takes place in the modern fantasy world of Eleg.
This book includes the first three story arcs of the ongoing serial novel.