Flood Rising (The Water Keepers, Book 4)

Flood Rising is Book 4 of The Water Keepers.
Sadie is excited to start her new life on Ambrosia training to become a Water Keeper, and it's even more thrilling to finally be in a semi-normal relationship with the love of her life, Rayne. But the Council has made great exceptions to the laws in order to let Sadie enroll at the Academy, and the Council doesn't give out favors freely. They expect something in return. Not only is she exhausted allowing Orion and the Council to study her abilities, but Sadie feels a sick feeling deep inside that Orion is up to no good. To make matters worse, images of Voss continue to haunt her dreams, and somehow, Sadie knows that she's the only one who can find him back on Earth and stop his evildoings once and for all.