In August 2001, he traveled to Central Asia to launch a humanitarian mission in the Panjshir Valley and bring to Ahmad Shah Massoud proofs of his book "The Afghan Hawk". A few days later, 9 September 2001, two days before the attacks on the World Trade Center, the Lion of Panjshir was assassinated by two terrorists of Al-Qaeda. Olivier Weber was to attend his funeral, when the Taliban launched a major offensive. His testimony and his denunciation of the Taliban regime and the rise of Al-Qaeda in Afghanistan, Pakistan and Central Asia have earned him death threats. He has published several books on Central Asia and the Silk Road: "The Great Feast of the East", "The Afghan Hawk: a journey to the land of the Taliban", "Memory Murdered", "Road of Drugs", "The White Death".