The Highlands Trilogy : Black Harvest

Joe Leahy is the half-caste son of one of the first explorers of the Papua New Guinean interior. His relations with the local Ganiga tribe who work his coffee plantation on their land are difficult at times. However he has successfully managed to get them to agree to open a second plantation in partnership with him. Things are looking up until the international coffee market hits rough times and conflict seems imminent between the Ganiga and their neighbouring traditional enemies.