num_pages: 62
description: The classic graphic novel. 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?
language: English
title: The Seven Crystal Balls
titlecomplete: The Seven Crystal Balls (Tintin, #13)
characters: Nestor, Professor Calculus, Thomson & Thompson, Captain Archibald Haddock, Snowy, Tintin
genres: Fiction, France, Adventure, Mystery, Graphic Novels, Bande Dessinée, Childrens, Comics, Graphic Novels Comics, Comic Book
ratings_count: 13621
series: Tintin, Tim und Struppi Hörspiele
publisher: Little, Brown Books for Young Readers