Shadow Warrior

My name is Max of course no one knows that anymore as it's been 30 years since I was killed for reasons I didn't even do or know. My story begins with me being pushed of a cliff. It's a rather unpleasant feeling knowing you're going to die, being able to feel your body become paste as you hit the ground. Of course, that would have been the end of me had it not been for 'him'. A being who gave me power and a mission that to this day I don't know what it's for. The cover is not mine and I am unaware of who the author is.