An io9 Can’t Miss Technology Fiction and Dream title in March 2014.

Martin Banks is a normal guy that has made an abnormal discovery: he can manipulate reality, because of reality being only a computer system. With every use of this capability, though, Martin finds his little “tweaks” never have escaped notice. Rather than face prosecution, he decides instead to travel back in its history to the center Ages and present as a wizard.

What may go wrong?

An American hacker in King Arthur’s court, Martin must now train to become a full-fledged get good at of his powers, uncover the truth behind the ancient wizard Merlin…and not, y’know, die or anything.