Tintin: The Saicret o the Unicorn (Tintin in Scots)

Tintin finds a model of an old warship, the Unicorn, once commanded by one of Captain Haddie?s ancestors. Hidden within the ship is a clue to the location of the lost treasure of the infamous pirate, Rachlan the Reid ? and it?s a clue a gang of unscrupoulous criminals is prepared to kill for.