A gathering of Rumbaba people preforming a sacrifice as seen in The Broken Ear.

The Rumbabas are an enduring group of pre-Colombian indigenous people living deep in the jungles of South America (along the fictional river Coliflor), who behead any strangers who pass their way, shrink the heads down and put them on display. They appear only in The Broken Ear, where while investigating the theft of a fetish/idol, Tintin and Snowy venture into the San Theodoran jungle despite being warned of the presence of vicious savages. The bad reputation the Rumbabas have is indeed well earned as they capture Tintin and his newly meet acquaintance Ridgewell and attempt to use them in a human sacrifice. The Rumbabas are fierce enemies of their near-neighbors and rivals, the Arumbayas.

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