The Seven Crystal Balls

This new format, crafted specifically for younger readers, features the original Tintin graphic novel plus brand-new content. Go "behind the scenes" with the true story about people, places and antiquities that Hergé drew from, filled with fun facts, lots of pictures, and easy-to-read text! In this adventure: Seven explorers return from an expedition in the Andes, where they unearthed the tomb of an Incan priest. One by one, they fall into a coma. Can Tintin figure out what is causing the mysterious illness?