It took a while but my Vermont librarian found a copy at the Boston Public Library. A ⭐️⭐️⭐️⭐️⭐️ read.
A father kills his wife and children, leaving one boy hiding in a closet. Years later the son returns to the island to try to work through his memories & his own sense of guilt. The residents and the uncle who welcomes the son back display their hesitancy in knowing how to approach him. The island itself is beautifully captured. So good.