Someone is killing fairy godmothers in Cinderella... Can Miss Clara Vale crack the case before the clock strikes twelve?

1929, December: Snow is falling, and Miss Clara Vale is wrapped up against the cold as she braves the icy streets of Newcastle in her latest investigation.

When a young actress from the touring pantomime of Cinderella arrives at her door, Clara isn't sure what to make of her request. Sybil Langford, the legendary fairy godmother in their production, has mysteriously vanished. Could Clara help track her down?

But a few days into Clara's search, Sybil's body is pulled from an icy river, and Clara finds herself in the middle of yet another murder mystery.

With scheming stepsisters waiting in the wings, handsome princes who aren't all they seem, and clues as elusive as glass slippers, Clara will need every one of her scientific skills to catch the killer...

And when Sybil's replacement meets her own tragic end, Clara is in a race against time before the murderer sends a third cast member to their unhappily ever after...