The conclusion of the trilogy, I was very excited to read the final book since the second ended on a major cliffhanger.
Merry knows her witchcraft is unlike anyone else's in the coven, and at this point, it's lost her the boy she crushed on, a friend, the boy she loved, and now, possibly her brother.
No one in the coven wants her to go after Leo; they believe he's already lost. Her grandmother, having lost her magic to the evil Ronan, seems to be the only one on her side but not even she is able to help her.
Only Finn can, the wizard boy who she's not sure she can trust. He had his own agenda - saving his non-magic brother who was lost to a coma invoked by Ronan. If he hadn't stopped Merry when he did, Leo might still be with her instead of trapped in another reality with evil Ronan.
Probably feeling guilty, Finn is the one who goes with her as they enter the other realm and are met with Jack.
Jack, the boy she fell in love with while he was cursed with the King of Hearts. The boy who'd died once again, who she thought had finally found piece as they shattered Gwydion.
But nothing is what it seems in this other reality; Jack is not the same boy she'd spend so much time with. Whom she'd been dreaming about for months after he'd died. In fact, even Merry's ancestors - Meredith and her sisters - are still alive. Meredith, to whom she owed her bond with Jack as she'd been the first to be in love with Jack.
(This is the part that really sucked for anyone who believed in the sweet romance between Merry and Jack - it was majorly downplayed and pretty much killed by this point as something that was never real to begin with.)
The past Merry knew - the one detailed in book #1 - didn't happen in this alternate reality. Ronan is the master in this new kingdom, Leo pretty much his slave. At this point still willing to point, but slowly losing hope his sister will come and save him.
Finn and Merry grow closer and there's some insta-love happening (way too fast and out of the blue if you ask me). A point of contention between the two is Finn not holding any magic while in this alternate reality; his Wizard House wasn't yet established at this point in history, opposed to Merry who is as strong as ever.
They manage to reach Leo in time and save him before he's bonded to Ronan forever, a puppet playing to his master's tune. The question remains, though, is it really over?
An explosive finale follows, one that's quite surprising and therefore that much better. I love that Katharine and Elizabeth Corr didn't hesitate to make this choice and it fit the story very well.
I only retracted one star because the romance between Finn and Merry felt too quick and rushed and not believable. (Mind you, I read mainly romance novels so I might look at a touch of romance in other genres from a different angle.) If you keep in mind that Merry was still very much longing and pining for Jack in book #2 and didn't trust Finn all through that book aside from acknowledging he was good-looking and knew how to flirt, the heavy romance didn't fit book #3. With Finn fighting against a temporary loss of his magic and his overbearing father's presence casting a shadow over their romance, it was just too much to be believable.