Gipsies, singers, and gems! Tintin and Haddock face an adventure at home when Bianca Castafiore, a famous (or infamous, if you were to ask Haddock) singer comes to visit with her renowned jewels. However, a mystery springs when the most well-known jewel, the Castafiore Emerald, goes missing. Paper back book. 8.5 inches by 11.5 inches. 62 pages