These Rebel Waves by Sara Raasch is a two book long series including the sequel These Divided Shores.

These Rebel Waves is a fantasy book that revolves around the magical land of Grace Loray, and the religious kingdom of Argrid.
Adeluna (or Lu for short) is a soldier who helped free the magic rich country of Grace Loray from its Argridian oppressors. Devereux is a stream raider who steals the magic plants of Grace Loray to sell on the black market. Ben is the heretic prince of Argrid, who finds himself secretly interested in Grace Loray’s forbidden magic.
Adeluna grew up during the rebellion and knew nothing but how to be a soldier. Now that she helped Grace Loray overthrow Argrid she found herself lost on what to do with her life. She doesn’t need to find out because there’s trouble in the council as one of the Argridian delegates goes missing. Devereux is a raider with no alliances, one of the most notorious outlaws to walk Grace Loray, but he soon finds himself launched straight into the political mess of Grace Loray, and as he finds out that the raiders are being blamed for the disappearance of the delegate Ibarra, he agrees to help Adeluna find the missing delegate to prevent the upcoming war. Ben has only known to fear the magic of Grace Loray after his dear uncle and cousin were burned for researching magic. But when his father asked him something unbelievable, he now must find out if he is being set up to die, or can he really change the minds of Argrid.
I found this book interesting because of the endless plot twist, the frequent cliffhangers between chapters, and how you can really see what each and every character is feeling, and every character is going through in the story. I would recommend this book to age’s 13 and up.
These Rebel Waves by Sara Raasch is available to checkout from the Mission Viejo Library. It is also available to download for free from Libby.