The board members of the American company Dall & Houston receive a death threat from an alleged Islamic terrorist called Aarohum Al Rashid: unless they return the 1,000 million dollars that they got from its direct involvement with the Iraq war, they will be killed one by one. The plot addresses current global issues like the war for the control of the supply of coltan, a mineral so valuable that has become essential in the developed world technology. "Coltan" is a great novel charged with action, intrigue and top-class story-telling.