Captain Riddle's Treasure

Three children, banished by the Night Fairy to a deserted island for frequent fighting with their siblings, must find their way back home using their wits. Their adventures include a voyage onboard a one-of-a-kind ship, where they get stuck in the timeline; fight pirates; and meet a multitude of leprechauns, a fire-spewing dragon, a knight astride a lion, and the Night Fairy herself.