This one grabbed me and didn't let go. Time travel, handsome pirates, a trail of clues leading to treasure that may be more trouble than its worth, and feuding families and factions. 
 All good so far, but a book always lives or dies on its characters for me. The two main characters here (Nicholas & Etta) were perfect. Or rather, I should say perfectly imperfect; vivid, flawed, and relatable. The secondary characters were generally well fleshed out, and the storyline was action-packed and gripping. I don't think it's much of a spoiler to say there's a romance involved, and while I was concerned by a slight whiff of instalove, it developed into something much sweeter and satisfying. 
 Eagerly awaiting Wayfarer in 2017!