A killer's trail leads Detective Alex Cross to Africa - and a whole new world of danger.

Called in to investigate a massacre, Alex Cross is shocked to discover an old friend among the victims. Furious and devastated, he sets out to get justice.

The lethal Washington D.C. underworld leads him to the Niger Delta, where the heroin and slave trades are rife, and to the terrifying, psychopathic perpetrator of the massacre: the Tiger.

But nothing is what it seems, and as Cross travels deeper into this dangerous world of corruption and conspiracy, his own survival is on the line...