The Snow Princess — Matt Larkin

The mountain peaks are freezing. She is colder still. The Sea Princess is determined to drive the he'e from the mer capital. Namaka's people have lost battle after battle, never able to stand up to the might of the octopus god-king's army and magical powers. To win the war, Namaka turns to the brutal nanaue--weresharks feared by mer and he'e alike. But the nanaue live on the island of the Snow Princess, Poliahu, a sorceress quick to anger. If Namaka is to succeed in recruiting the weresharks, she must first deal with this new Princess and her powers of mist and cold. Poliahu doesn't care about nanaue or he'e or politics. Her passion is the Art, taught to her by the snow spirits who raised her. Driven ever deeper into the Art, Poliahu is determined to become a sorceress unlike any other in history. She's poised to do it, too, as long as she can keep the power of the Art from consuming her.