I love these alternative covers for Cigars of the Pharaoh and King Ottokar's Sceptre. They are from 1942 editions but Casterman have recently reissued them in (French only).

TIntin and the Blue Oranges

The book of the movie. Considered by many to be not as good as Tintin and the Golden Fleece a few years earlier. Professor Calculus invents an orange that will grow in all climates from a desert to an iceberg. This will solve food shortages for peoiple living in these areas, and so naturally bad guys kidnap Calculus. Oh, and the oranges happen to be blue.
The book is the same size as the Tintin adventures. It has descriptive text and dialogue from the movie, some colour photos and a few drawings.