Nuair a thuigeas Tintin g' eil na buill chriostail a' toirt fulang air buill den triall, tha e ri coinneachadh ri Proifeasair Tarragon, aig a bheil Rascar Capac. Le Capac ri sìoladh às, tha mallachd nan Inca a nis ga shaoradh.
When Tintin realises that the crystal balls inflict suffering on members of the expedition, he meets with Professor Tarragon, who has Rascar Capac. With Capac evaporating, the curse of the Inca is now unleashed. Show less