'This man has promised to kill . . .' Hal and Roger Hunt are on the trail of a vicious man-eating leopard. Yet they are also being hunted themselves, by a merciless band of killers known as the Leopard Society. Can they trust their own tracker, Joro, despite knowing that he has pledged to lead them to their deaths? 'This man has promised to kill...' Hal and Roger Hunt are on the trail of a vicious man-eating leopard. Yet they are also being hunted themselves, by a merciless band of killers known as the Leopard Society. Can they trust their own tracker, Joro, despite knowing that he has pledged to lead them to their deaths?