Gene, the daughter of a noble family, runs away from the decadence of court to R.H. Ragona's circus of magic, where she meets runaway Micah, whose blood could unlock the mysteries of the world of Ellada.

When St. Kilda has its first Flower Festival, the Honourable Phryne Fisher becomes the honorary Queen of the Flowers. But when one of her flower maidens and her adopted daughter Ruth both go missing, Phryne puts aside her duties as queen and takes up her duties as investigator.

Morris and Boris go to the circus as spectators and end up being part of the action.

Once there was a mermaid called Amelia who could never be content in the sea, a mermaid who longed to know all the world and all its wonders, and so she came to live on land. Once there was a man called P. T. Barnum, a man who longed to make his fortune by selling the wondrous and miraculous, and there is nothing more miraculous than a real mermaid. Amelia agrees to play the mermaid for Barnum and walk among men in their world, believing she can leave...

Now 94 and living a quiet life, Cecily Larson, lives in Minnesota with her daughter, granddaughter, and great-grandson. When her family surprises her with an at-home DNA test, the unexpected results not only bring to light the tragic love story she's kept hidden for decades but also calls into question everything about the family she's raised and claimed as her own.

Bradley, Brian, Nate, and Lucy try to help out the Flying Fortunatos, an acrobatic troupe with a very shabby traveling circus, by identifying the marvelous, hooded trapeze artist they spied rehearsing.

Mice carefully dress for an evening out, journey across Paris in a hot air balloon, and finally arrive at a secret place to see the circus.