Mabel Frost does not belong. Her mother, Captain Katherine Frost, spends months at sea, and home has never felt smaller than when it's just Jack and her little brother, Marcus. Mabel tells herself she prefers the distance of boarding school - where nobody knows who her family is, or what she's afraid to admit about them. But when her mother's ship returns and Mabel is forced to come home, she must face the truth she's been running from.