Just Hidden Worlds: Spark - Amy Kathleen Ryan

Waverly and Kieran are finally reunited on the Empyrean. Kieran has led the boys safely up to this point, and now that the girls are back, their mission seems slightly less impossible: to chase down the New Horizon, and save their parents from the enemy ship. But nothing is truly as it seems…Kieran’s leadership methods have raised Seth’s hackles— and Waverly’s suspicions. Is this really her fiancé? The handsome, loving boy she was torn from just a short time before? More and more, she finds her thoughts aligned with Seth’s. But if Seth is Kieran’s Enemy No. 1, what does that make her?

In one night, a strange explosion rocks the Empyrean—shooting them off course and delaying their pursuit of the New Horizon—and Seth is mysteriously released from the brig. Seth is the most obvious suspect for the explosion, and Waverly the most obvious suspect for releasing him. As the tension reaches a boiling point, will Seth be able to find the true culprit before Kieran locks them both away—or worse? Will Waverly follow her heart, even if it puts lives at risk? With the balance of power precarious and the clock ticking, every decision counts… every step brings them closer to a new beginning, or a sudden end...

I discovered about a week ago that the book came out sometime in July and that had made me really sad that I didn't read it on the first day. This book was full of everything; betrayal, love, and more. I thoroughly enjoyed reading it!

My personal opinion is that Kieran is an evil person who will and already has turned into Anne Mather. And Seth should end up with Waverly, but with that kind of a cliff hanger ending who knows what will happen to the children of the Empyrean and Seth. Sorry, can't tell, because that would be spoilers.

If you are looking for a good book series to get severly hooked on I would definatly recomend the Sky Chasers.

Sadly, the next one doesn't come out until next summer.