When Detective Alex Cross is called to investigate a massacre-style murder scene, he is shocked to find that one of the victims is an old friend. Angry, grieving, and more determined than ever, Cross begins the hunt for the perpetrators of this vicious crime. He is drawn into a dangerous underworld right in the heart of Washington DC that leads him on a life-threatening journey to the Niger Delta, where heroin dealing, slave trading and corruption are rife. nnAt the centre of this terrifying world, Cross finds the Tiger the psychopathic leader of a fearsome gang of killers who are not what they seem. As Cross tracks the elusive Tiger through Africa, he must battle against conspiracy and untold violence. nnAlex Cross is in a heart-stopping chase that takes him across a vast and uncompromising landscape and finds him not only hunting for a horrific killer, but also fighting for his own survival.

James B. Patterson (born March 22, 1947) is an American author of thriller novels, largely known for his series about African-American psychologist Alex Cross.