Time of Death
Harry gaped at the dark figure sitting before him.
"... Are you serious?"
"No Master, I'm Death"
Harry snorted in amusement despite himself, shaking his head in disbelief.
"But... Isn't time traveling really dangerous? What if I accidentally prevent my own birth or something?"
"Master, I can ensure you a successful trip into the past, and once you time travel, the timeline will split into two from the moment you land in the past, making it impossible for you to return to the present. You'll have to make a new life for yourself in the new timeline. And even if you prevent your birth, you will not cease to exist since you will be from a different timeline. I hope that that isn't a problem for you...?"
Harry gave Death a deadpan look. "I killed myself Death. My old life is over, and I don't want it back. A new start would be... Amazing."
Death inclined it's head, "Of course, Master."