Volume 5 includes #12-#14: "Red Rackham's Treasure"; "The Seven Crystal Balls"; and "Prisoners of the Sun".
Red Rackhams Treasure
'Red Rackham's Treasure' Follows on from the the previous Tintin Adventure, 'The Secret of the Unicorn,'. Having previously collected various clues relating to the whereabouts of sunken treasure, Tintin and Captain Haddock are prepared to go forth and find it. However, almost as important as the search for the treasure is the introduction to the final pivotal member of the Tintin family, as Professor Calculus offers the service of his small shark-proof submarine for exploring the ocean floor. Tintin refuses the offer, but it turns out that Professor Calculus always hears something other than what somebody is really saying. Adding to the fun are the Thompsons, who come along with orders to protect Tintin.
The Seven Crystal Balls
The adventure begins with Tintin on the train reading how the Sanders-Hardiman Ethnographic Expedition has returned from a trip to Peru and Bolivia. The gentleman reading over Tintin's shoulder predicts trouble, drawing a parallel between what happened with the curse of King Tut-Ankh-Amen's tomb and these explorers violating the Inca's burial chambers. "What'd we say if the Egyptians or the Peruvians came over here and started digging up our kings?" asks the gentleman; "What'd we say then, eh?" The comment is important, not only because tragedy does strike the seven members of the expedition as they fall prey to the Crystal Balls of the book's title, but because one of the themes that Hergé develops in this particular epic is the respect Europeans should have for other cultures and ways of life.
Prisoners of the Sun
Tintin, Snowy and Captain Haddock have a kidnapping on their hands. Professor Calculus has vanished. His disappearance is certainly connected with an ancient curse of the Incas, and the trail leads to Peru. But everyone fears the vengeance of the Prince of the Sun and only Zorrino, the young orange-seller will help them. High into the Andes they go, but the perilous journey ends in a dungeon and the prisoners face a hideous end. In this sequel to ''The Seven Crystal Balls'' Tintin is involved in one of his strangest and most colourful adventures.