Many years ago, I read a debut novel by M.L.Stedman, called The Light between Oceans. It taught me something important about endings and reader satisfaction.
The gorgeous title and very interesting premise called to me--a lighthouse keeper and his wife who live on a remote island off the coast of Australia find a baby in a boat that washes up on shore. The wife, desperately childless after three miscarriages, argues to keep the baby. The husband wants to contact the mainland and let them know, thinking that some mother there will be equally desperate. But the wife wins, they keep the child, and their world cracks in unexpected ways.
Although I love reading just for reading's sake, I have been reading as a writer for a very long time now. I have a writer's high expectations. I found the prose lovely, with generous use of images and tense character interaction. The setting of the rocky island and its isolation, the keen details about the lighthouse, were amazingly crafted.