The second adventure of the time-travelling Butterfly Club. Luna, Konstantin and Aidan travel to Egypt's Valley of the Kings in 1922 where an Egyptologist called Harold Carter is about to discover Tutankhamun's mummy... Greenwich, London, 1894. Luna, Konstantin and Aidan are time-travelling thieves, stealing artefacts from the future to bring progress forward. And they are about to venture on their most treacherous mission. For The Butterfly Club have their eyes on a shiny new prize. In Egypt's Valley of the Kings a man named Howard Carter will stumble upon an unimaginable treasure - Tutankhamun's mummy: the greatest archaeological discovery of all time. The three children are given an impossible task: travel to 1922 and uncover the mummy first. But when the time-thieves disturb Tutankhamun's long sleep they wake something else too - a deadly and ancient curse. And now they must face the terrifying consequences of their actions...