One Word Kill, by Mark Lawrence (47North, May 2019) , is a time travel story in which changes to the past create multiple timelines. It's the story of 15 year old Nick, a math genius who enjoys playing D. and D. with his three buddies, and what happens when a girl, Mia, joins the game. It's the story of Nick finding out he has cancer. These concerns, even the fact that Nick might be dying, are back-burnered when a strange man starts stalking Nick, telling him that Mia is in danger and needs his help. Saving future Mia involves a dangerous heist, and it also involves surviving the violent attentions of a gang of drug-dealing thugs, one of whom is a true psychopath. Fortunately, the strange man is there to help when things get really ugly. Turns out (and this isn't much of a spoiler, because it's told to the reader fairly early on) that this stranger is Nick from the future, come back to save future Mia. Though his timeline's Mia might be in jeopardy, ther...