Hair of Gold by Dai Alanye
Approx. 66,030 words.
Published on September 28, 2010.
With her father slain and the family’s future in her hands, Valys joins her uncle’s treasure-hunting expedition, disguising herself as a boy to face dangers and hardships in the company of grown men. The trek is fraught with menace, and at the treasure-hoard the crew mutiny and kidnap her to hold for ransom---but her uncle calls their bluff and refuses to pay. And then they discover her sex.