The Scorpio Races by Maggie Stiefvater
When Margaret Welty spots the legendary hala, the last living mythical creature, she knows the Halfmoon Hunt will soon fIt happens at the start of every November: the Scorpio Races. Riders attempt to keep hold of their water horses long enough to make it to the finish line. Some riders live. Others die.
At age nineteen, Sean Kendrick is the returning champion. He is a young man of few words, and if he has any fears, he keeps them buried deep, where no one else can see them.
Puck Connolly is different. She never meant to ride in the Scorpio Races. But fate hasn’t given her much of a chance. So she enters the competition — the first girl ever to do so. She is in no way prepared for what is going to happen.

About Maggie Stiefvater
New York Times bestselling author of The Shiver Trilogy, The Raven Cycle, and The Scorpio Races. Artist. Driver of things with wheels. Avid reader.
All of Maggie Stiefvater’s life decisions have been formed by a desire to leave a mark, resulting in spray-painted cars, sharpie-covered computer printers, ink-splattered walls, and stories told in books, in magazines, and on stages. Maggie Stiefvater lives in the middle of nowhere, Virginia with her husband, kids, and a bunch of fainting goats.