Assassin’s Creed: Last Descendants by Matthew J. Kirby

Nothing in Owen’s life has been right since his father died in prison, accused of a crime Owen is certain he didn’t commit. Monroe, the IT guy at school, might finally bring Owen the means to clear his father’s name by letting him use an Animus-a device that lets users explore genetic memories buried within their own DNA. During a simulation, Owen comes uncovers the existence of a powerful relic long considered a legend-the Trident of Eden. Now two secret organizations will stop at nothing to take possession of this artefact-the Brotherhood of Assassins and the Templar Order. It becomes clear the only way to save himself is to find the Trident first.