In their first adventure as Master Librarians, Jack and Annie go to thecity of Pompeii to bring back an ancient story that is in danger of being lostforever. Little do they know they are saving the myth of Hercules! But beforethey can find it, the town's volcano erupts in a mighty explosion. Just whenthings look hopeless, Jack and Annie get some unexpected help from a certainmythic hero - and the rest, as they say, is history.