UNCHARTED will be published on September 4, 2018, and is available for preorder now, online or from many wonderful bookstores and retailers. And hang onto your receipt! There will be a preorder contest announced in the next few months and the grand prize winner will receive a $100 gift card.
Here is the announcement in Publishers Weekly:
Ashley Hearn at Page Street has acquired world rights to Erin Cashman‘s YA contemporary fantasy, Uncharted. When 16-year-old Annabeth attends the funeral of family friends who drowned, she uncovers an ancient secret that some would die to protect and others would kill to expose—the existence of the legendary island of Hy-Brasil. Publication is scheduled for fall 2018; the author represented herself.