In 1703 England a boy travels a long distance to find news of his shipwrecked father, and meet an extraordinary man who, among many marvels, built a lighthouse. Historical fiction, and very good. Learned a number of interesting things.
Takes place mostly in the Tower Of London in 1735 when the son of the castle's Ravenmaster is involved in a plot to help a prisoner escape. Pretty good story, and learned a bit more about the Tower.