Who stole the Irish crown jewels? Is there a secret tunnel in O'Connell Street? And did the word 'quiz' originate in Dublin as the result of a bet? Urban legends are the funny and frightening folklore people share today. Just like the early folk tales that came before them, these tales are formed from reactions to events in the modern world, and reflect our current values. For the first time, Brendan Nolan explores the power of Dublin's urban legend – murky stories whispered in classrooms and back streets, and ripping yarns passed on across the bar. Urban legends may be just exaggerated rumours, but they embed themselves into local folklore. The real question is, what truth lies behind them?