Seven scientists mysteriously fall into a profound state of lethargy. As Calculus has disappeared, Tintin and Captain Haddock set off in search of the Professor

Featuring the original comic, as well as 24-pages of extra bonus background material, these special Young Readers' editions give insight into the book's inspira

One of a series of books which each contain three Tintin adventures. The series covers a wide range of Herge's work, and this volume includes the beautiful but