On the way, through hand gestures and broken English, Henry explained that there were two tribes of Nambas on Malekula, the Big Nambas and the Small Nambas. The names refer to the relative size of their penis sheaths (made out of leaves or plant fiber and, for the Big Nambas, dyed a lurid purple). If that wasn’t enough to scare us, we were minutes away from seeing one attached to a real live cannibal. This is elective cannibalism, mind you. It’s less “we’re out of food; we have to eat Jimmy” and more “Let’s kill our enemy Clarence then eat him so we can absorb his power.” Over the past century, missionaries in the region have managed to convince the Nambas of cannibalism’s shaky logical and moral grounding, so it’s now considered politically incorrect. Still, everyone in these tribes seems to know someone who’s done it.