Darkest Peru

Darkest Peru was a location that David Attenborough and the BBC Natural History Film-Making Unit visited during filming of Attenborough in the Amazon. Darkest Peru was described as being "off the beaten track" from the Amazon, and there was "a remarkable city and a lost civilisation" within. (PROSE: Greyhound: A Memoir)

Behind the scenes
Darkest Peru is actually a fictional part of Peru which originated in A Bear Called Paddington. Thus, PROSE: Greyhound: A Memoir is an implicit crossover with the Paddington Bear stories.