I said in my review from book 1 that the world is what interested me in this series & prodded me to continue reading, that is the mysterious Frost, Further's land, the mysterious creatures, a land far away in a portal, etc, because the characters were simply horrid, the dialogue was frustrating, and the plot was almost nonexistent.
Despite my better judgment and extreme irritation that a scattered 30% or more of each book seemed to recap its' predecessor, I read all the books expecting something, anything to redeem the fragile fondness I harbored for book 1. Sadly, the series only grew more intolerable!
Two main plot points existed in this final book - the sibling's sickness (the MCs concern) and overthrowing the dictator ( everyone else's concern) & just like everything else that's ever happened in this series, somehow those two very different goals seemed to coincidently, conveniently converge for each party. Aside from the too convenient aspect, it was also boring, slow, and the 'getting there' was a big case of much ado about nothing.
Then there is the romance eye roll , sigh, cough . Omg this love triangle is the most exasperating thing I've ever seen. Dear author... looks, glances, unspoken feelings, thickness in the air, hand gestures, nods, blah- blah DO NOT EQUATE TO DIALOGUE! Aside from the maybe 5 sentences the trio speak to each other the entire book r/to their love, their dialogue consist of just such nonsense as thicknesses in the air and quick nods of understanding over words never f'ing spoken. This isn't a romance... It's Chinese torture.
I didn't root for either if the guys in this love triangle because I found them both unappealing for different reasons, one a near mute that valued duty over love just too many times and the other a polar opposite of the female MC, but I get that some readers will be pro one or the other. The MC made a final choice in the last of the book, but the author let her have her cake and eat it too over a 20 year epilogue ;-| that I think was a complete appeasement cop out.
I ultimately feel that I cannot find a single redeeming quality upon to recommend this series.