White Devils — Paul McAuley

Plague, civil war, and uncontrolled experiments in genetic engineering have caused widespread chaos and devastation throughout Africa. Nicholas Hyde is part of a team of forensic pathologists investigating a massacre in the swamp forest of the northern Congo when an armed band of ferocious ape-like creatures attack. Nick survives, but finds that he's at the center of a massive cover-up.

For although the "white devils" that killed Nick's friends were almost certainly the result of illegal genetic manipulation, Obligate, the environmentally conscious transnational now controlling this part of the Congo, denies that they exist, and ruthlessly suppresses all evidence to the contrary. Although he has secrets of his own to conceal, Nick becomes determined to uncover the origin of the mysterious creatures -- and why certain individuals are prepared to resort to murder to bury the truth.

But even the atrocities he has already witnessed cannot prepare him for the terrifying secrets he uncovers on his journey into the wrecked heart of Africa, and the birthplace of the white devils.