Of Rime and Ruin by Liesl West

A kingdom on the edge.
A monster in the depths.
And a bond that could rule or ruin…

Princess Nahlani of the Brine would rather master her siren magic than endure the responsibilities of court. So, when she’s threatened with an arranged marriage to a land-bound prince, Nahla flees—only to swim into the icy domain of the cruel Frost King.
King Aethan rules a Rime in ruins, his cold exterior concealing an unspoken shame: a curse that turns him into a bloodthirsty, unpredictable threat to his own people. The siren spy in his waters doesn’t know it yet, but she’ll be safer behind bars…
Determined to escape her new captor, Nahla’s magic sparks a forbidden alliance. Unaware of the bond she’s formed with the kingdom’s most feared creature—the fabled clawbeast—Aethan moves her from prison to palace.
But as the truth of the beast unravels, so does the distance between Nahla and Aethan, leaving them to confront a dangerous and undeniable attraction.

Part of the Sirens of Adria series, Of Rime and Ruin is a fantasy romance retelling of Beauty and the Beast.