De schat van de zeerover (The pirate's treasure)

Into the model boat, which Jommeke finds in the dust bin, a secret code is burnt. After having decoded it, together with his friend Filiberke, Jommeke discovers the place, where the so-called treasure of a pirate ship should have been buried many years ago. With the help of professor Goblin the two boys try to dig up the secret treasure. But of course they've forgotten the raider who has been watching them all the time...