Read out of order, therefor reviewed out of order, sorry.
This time Kowal sends the Prince Regent's glamourists to London in order to give Jane's sister a proper season. Unfortuantely, it's the Year of No Summer, 1816. There is labor unrest and dirty tricks and this whole business of finding Melody a suitable husband.
The interweaving of the real food shortage and labor unrest with the fictional and fantastic Worshipful Company of Coldmongers is very well done. Certainly there were a great number of children working in many dangerous industries at the time to provide a suitable model. Part of the great charm here is how closely Kowal can follow the Austen model of trying to find a suitable husband for a single woman of 20, and also bring to it further depth of plotting and character development and world-building.
And there is thrilling courtroom drama.