Tall Water by S. J. Sindu

Ever since she turned sixteen, Nimmi has wanted to see her mother. Though she has a loving but overprotective father and a budding relationship, she yearns to travel to Sri Lanka to confront the mother who refused to leave the island during a war, not even for Nimmi’s sake. Her father is going back for the first time as a reporter on assignment, but he refuses to take her, deeming Sri Lanka too dangerous.