The Broken Ear
The Arumbayas are an indigenous people living in the South American rainforest along the fictional river Coliflor. They first appear in "The Broken Ear" where, investigating the theft of an Arumbaya fetish with a broken ear, Tintin and Snowy venture into the San Theodoros jungle. The British explorer Ridgewell lives with them. Despite a reputation for ferocity, the Arumbayas prove to be relatively civil when Tintin encounters them. They casually explain that their bad reputation may be due to the actions of their neighbours, the Rumbabas, who behead anyone who passes their way.