Feisty teenage thief Maeko and her maybe-more-than-friend Chaff have scraped out an existence in Victorian London's gritty streets, but after a near-disastrous heist leads her to a mysterious clockwork cat and two dead bodies, she's thrust into a murder mystery that may cost her everything she holds dear. Her only allies are Chaff, the cat, and Ash, the son of the only murder suspect, who offers her enough money to finally get off the streets if she'll help him find the real killer.

Evil is most assuredly afoot - and Britain’s fate rests in the hands of an alluring renegade... and a librarian. These are dark days indeed in Victoria’s England. Londoners are vanishing, then reappearing, washing up as corpses on the banks of the Thames, drained of blood and bone. Yet the Ministry of Peculiar Occurrences - the Crown’s clandestine organization whose bailiwick is the strange and unsettling - will not allow its agents to investigate. Fearless and exceedingly lovely Eliza D. Braun, however, with her disturbing fondness for dynamite, refuses to let the matter rest...

Arwen Forester may be a socially awkward introvert, but she’s an expert tracker, archer, and forager who has a pickling recipe for every vegetable in the garden. Unfortunately, none of these skills earn her a lot of money. And when the taxes go up on her father’s farm, she’s not sure how to help him keep the property. Then someone offers her a lucrative new gig: Hunt down a haughty half-dragon criminal with the power to incinerate those who irritate him.

Baton. Light. Chocolate. Duck. This is not DS Adams' usual kit. This is not DS Adams' usual case. She doesn't think it's anyone's usual case, not with the vanishing children and the looming bridge and the hungry river. Not with the snap-snap-snap. But six kids are missing, and she's not going to let there be a seventh. Not on her watch. And she knows how to handle human monsters, after all. How different can this really be?

As Molly Dark knows all too well, the problem with being able to see ghosts is that they never tell you what you wish to know. For instance, how a proper young lady like Miss Dark is supposed to support an impoverished family after her father has died a ruined man. Or how she is going to impersonate a missing princess long enough to steal a fortune out from under the collective noses of a whole family of royal monsters. Or exactly why the charming imposter claims to be none other than Grand Duke Vasily Nikolaevich, when he certainly isn’t a prince…or a vampire.