The extraordinary story of the longest-held Al Qaeda captive in the world.

Stephen McGown was en route from London to South Africa, on a once-in-a-lifetime trip by motorbike, returning home to Johannesburg. He had reached Timbuktu, in Mali, when he was captured, along with a Dutch and a Swedish national, by Al Qaeda Islamist militants. Steve was taken because he held a British passport. He was subsequently held hostage at various camps in the Sahara Desert in the north-west of Africa for nearly six years before eventually being released.

Life as Steve had known it changed in that instant that he was taken at gunpoint. He had nothing to bargain with and everything to lose. For the next six years, he reluctantly engaged in what he came to call the greatest chess game of his life.

Thousands of kilometres to the south, in Johannesburg, the shock of Stephen's capture struck the McGown family and his wife, Cath, with whom he had, until recently, been living in London. They immediately began efforts to secure Steve's release, through diplomatic channels and in every other way they felt might have a chance of seeing Stephen freed.

But as the months of captivity became years, Steve was compelled to go to extraordinary lengths to survive. Making it back home alive became his sole aim. To accomplish this, he realised that he would have to do everything he could to raise his status in the eyes of his captors. To this end, he taught himself Arabic and French, and also converted to Islam, accepting a new name, Lot.

To this day, Steve retains the unenviable record of being the longest-held surviving prisoner of Al Qaeda. While he was undoubtedly always Al Qaeda's captive, through the long years he spent in intimate proximity to his captors, Steve got to see the Islamist militants as few other Westerners have ever seen them.

Six Years a Hostage is not only a remarkable story of mental strength, physical endurance and the resilience of the human spirit, but also, significantly, a unique and nuanced perspective on one of the world's most feared terrorist groups. Steve did not merely survive his terrible ordeal; he emerged from the desert a changed - stronger, more positive - human being.

This is Stephen McGown's remarkable story, as told to Tudor Caradoc-Davies, a freelance writer, editor and author based in Cape Town, South Africa. After seven years spent working for glossy magazines such as Men's Health, GQ, Best Life and Women's Health, he now contributes to a range of publications. He also writes for the (South African) Sunday Times, and Red Bulletin.