"I had no idea how to find my way around this medieval city. It was getting dark. I was tired. I didn't speak Arabic. I was a little frightened. But hadn't I battled scorpions in the wilds of Costa Rica and prevailed? Hadn't I survived fainting in a San Jos brothel? Hadn't I once arrived in Ireland with only $10 in my pocket and made it last two weeks? Surely I could handle a walk through an unfamiliar town. So I took a breath, tightened the black...