A ripping adventure yarn about teenage boys who join the crew of a ship of the Dutch East India Company in the 17th century. After a dramatic shipwreck and escape from an attack by natives, they must make their way to safety by themselves.
During a riding vacation on the island Ameland, a young girl discovers a dangerous horse who distrust people. To prove that the horse isn't dangerous at all, the girl secretly trains the horse to trust humans again.
Tom goes along with Miriam and Snuf one week stay with their uncle and their cousin Hans Jaap. Near the house of Uncle Hans was a haunted castle.