Sada Mujahideen Camp, the Afghan border with Pakistan: 'I watched the moon rise over the mountains. A halo of light flared over the night-stained crops and the full moon crept into the open sky. Around me sat the Mujahideen staring at this extraordinary creature, freshly arrived from Peshawar.'It was October 1989, the head of the Guildford Surgical Team, a spirited group of medics who gave up their holidays each year to operate on the war-wounded from the Afghan-Russian war, had sent me, a newly qualified doctor, up to a Mujahideen camp. The warriors had requested a woman doctor to treat female refugees. It was my dream to meet the Mujahideen. I had seen them the year before on horseback when I travelled in the mountains of Garam Chashma, taking supplies into Afghanistan. But travelling as a woman in tribal areas wasn't safe, so I bought a drab brown salwar kameez in a bazaar in Peshawar, tucked my blonde plait into a hat and, disguised as a man, clambered into a battered old minivan with my young, bearded, green-eyed guide Alhem.