Steampunk hero Ulysses Quicksilver must race against time to save Paris from a terrible clockwork fate. Paris. City of lights. City of lovers. City of dreams. Yet if one man gets his way its inhabitants will soon be forced to endure a nightmare such as they have never known. But dandy detective and Hero of the British Empire Ulysses Quicksilver is determined to get in his way; although he has problems of his own to deal with first before he can try to rescue the French capital from its earth-shattering fate. Arriving at a murder scene - with the dead man's blood on his hands - Ulysses is forced to go on the run, so that he might track down the real killer. His intention: to clear his good name, and get back to England in one piece and as quickly as possible; for the love of his life is about to take a most ill-advised trip to the Moon. But that might be easier said than done, for the terrorist known only as 'Le Papillon' is preparing to bring chaos to the capital. When a butterfly flaps its wings, a wise man prepares for stormy weather. And with Ulysses Quicksilver involved, it's bound to be the worst storm on record.