Kate has lived relatively months during a period of time that’s much shorter for most of the world around her (as a reader, honestly, I am not sure how much time has gone by since she first was told by her grandmother in the first book, Timebound, about her ability to travel through time using a Chronos key). She has traveled to dozens of times and places, all in the past century or so, trying to find ways to stop her evil grandfather Saul’s plan to get rid of much of humanity and start afresh with chosen loyal followers of his made-up religion the Cyrists. Her actions and those of a few others who are trying to stop Saul, as well as Saul’s reactions and those of time travelers loyal to him, have changed the timelines more than a few times, both in significant and more minor ways. Kate has lived a number of “realities” because she has been “under a key” during all of it. She has spent a lot of time with Kiernan, who still is in love with “her” (but really her alternate that existed in a different timeline), and has kept her boyfriend Trey in her reality since the end of the first book by putting him under a key.
In this final book, Kate is facing the fact that the only way she can finally put an end to the culling is to jump forward three centuries in time, to the future when her grandfather destroyed the headquarters of Chronos and set everything in motion. But everything has to be carefully planned and calibrated because that time is only static on her Chronos key, and if she were to completely undo what Saul did, SHE would be erased from existence. So the stakes are high, and there are no perfect solutions for a happily-ever-after for all the characters.
I must admit I was a little surprised at how things played out. I don’t want to include any spoilers here, but suffice it to say I was a bit disappointed in some areas. Overall, though, the book and series were really entertaining and well plotted. With all that jumping around in time, the ramifications of everything that goes on are pretty mind-boggling, as the author has her characters acknowledge. But as far as I could tell, it all pretty much makes sense under “the rules.” That is a pretty big feat in itself. Fun series.
Rated: Mild, (maybe could go close to moderate) for occasional mild and moderate language, some kissing scenes (but no real allusions this time to the main character and her boyfriend having sex sometime in the future as in the previous ones), and lots of action and a fair amount of violence.