Saltwater Witch by Chris Howard

Kassandra comes from the sea, but she has no memory of saltwater, seagulls, or an incoming tide. She's never seen an ocean, never heard the thunder of surf. She's an exile, betrayed by her own family, sent as far from the sea as they could arrange--somewhere in the middle of Nebraska.
Everything changes the day she drowns in Red Bear Lake, and discovers she can't really drown. Not in the way everyone else can. Then a two-thousand year old king wakes inside her head and turns out to be a prodigy with mathematics. Kassandra cries for the first time in her life, and learns that her tears are doorways for calling things from the sea. With clues from summoned sea-demons and the voices in her head, Kassandra sets out to find out what the hell is going on...and discovers she's a prisoner, trapped between a murderous grandfather who controls an army of the drowned dead, river witches who spy on her through the plumbing, and Ms. Matrothy, the Girl's Department Director, who's been trying to kill her since she was four. From Goodreads.

This was more interesting than I expected. Kassandra is very far away from the sea and scared of the water. After nearly drowning or not as it turned out, a lot starts to happen. I like Kassandra and there are a few twists in the story that I didn't expect. A high Polar Bear 3 and I might read the continuation of this series.

This book qualifies for:
2014 Ebook challenge
Meet the Protagonist Reading Challenge 2014 (main character younger than 18)
2014 Witches & Witchcraft Reading Challenge
2014 Full House Reading Challenge (published before 2013)
2014 TBR Pile Reading Challenge (bought on Amazon.co.uk 2nd of May 2012)
CCC A-Z Authors 2014
CCC A-Z Book Titles 2014
You Read How Many Books? Reading Challenge 2014
The Challenge Factory Spell It Out - Supercalifragilisticexpialidocious (S)
Goodreads Reading Challenge 2014
Nothing but Reading Challenges - Spell it Out - Animal Alphabet (K)
CCC-Read your age (published 2005)
Nothing but Reading Challenges - 50 States Challenge (Nebraska)