Heart of Dark Chocolate

When an award-winning food writer discovered the best chocolate he'd ever eaten - a long-lost strain of wild cacao from the Bolivian rainforest - he vowed to track down the stuff to its source. In the company of an eccentric German entrepreneur, who is hoping to buy the cacao from the natives, he journeys into the heart of Amazonia, enduring monstrous ticks, warlike ants, floods, drug runners, fickle outboards, piranha for breakfast, a coca-addled helmsman, and a tribal chief more interested in beer than commerce.