This steampunk mystery novella tells about the famous detective - Lady Law - who routinely puts Scotland Yard to shame. It is also the story of Julia who is a dance hall performer who enlists Lady Law to find out who murdered her sister. Julia herself becomes a target of unknown attackers and flees through an alternate Victorian London and through various airships and mechanical museums. Julia is aided by police constable Al Grant and aging adventurer Horace Holly as she tries to unravel her sister's murder after Lady Law comes back with a solution that is just to pat. Lots of steampunk details in this one. Fun!