In this final episode, all mysteries come to completion. Adventures begun in 1884 find the Children of the Light two years older. Tiny keys unlock secrets from a desk, a box, and a crate. A skeleton key exposes a thrilling surprise behind a puzzling lighthouse door. Two children are injured. Pirates unload unusual treasure. Lucinda DePere's secret wows not only islanders but her two adoring suitors. Florence "Dellie" Delight wonders why she is the only one of the nine not to receive an extraordinary gift. She never loses faith. Dellie knows that faithfulness is a blessed Fruit of the Spirit guaranteed to her and to all "Children of the Light."