The world's most famous travelling reporter learns the secret of the Unicorn. When Tintin stumbles across a model ship at the Old Street Market, he buys it as a gift for his friend Captain Haddock. But this isn't just any old model ship ...it's the Unicorn. Built by one of Haddock's ancestors it holds a clue to finding the treasure of a notorious pirate. Join the most iconic character in comics as he embarks on an extraordinary adventure spanning historical and political events, and thrilling mysteries.