Rascar Capac is the mummy in The Seven Crystal Balls. He is an ancient Incan monarch dug up by the Sanders-Hardiman Expedition. Professor Hercules Tarragon displays the mummy in his house. When lightning strikes into the chimney, it sends a fireball hurling through the living room, and the fireball crashes into Capac, vaporizing him. That night, Tintin, Captain Haddock, and Professor Calculus all have the same nightmare: Capac climbs into the room carrying a glowing crystal ball and smashes it onto the floor. What happens to the apparently resurrected mummy afterwards is unclear.