Invictus by Ryan Graudin
iTime flies when you're plundering history./iFarway Gaius McCarthy was born outside of time. The son of a time-traveling Recorder from 2354 AD and a gladiator living in Rome in 95 AD, Far's birth defies the laws of nature. Exploring history himself is all he's ever wanted, and after failing his final time-traveling exam, Far takes a position commanding a ship with a crew of his friends as part of a black market operation to steal valuables from the past. But during a heist on the sinking Titanic, Far meets a mysterious girl who always seems to be one step ahead of him. Armed with knowledge that will bring Far's very existence into question, she will lead Far and his team on a race through time to discover a frightening truth: History is not as steady as it seems.