Marie Brennan 
In Ashes Lie 

The year is 1639, and King Charles I and Parliament vie for power, fighting one another with politics and armies alike. Below the streets of London, the faerie court has enemies of its own. The old ways are breaking down, and no one knows what will take their place. A greater threat is growing, and under a new king, mortal and fae will have to lay aside the differences that divide them, and fight together for the survival of London itself…

About the author

Marie Brennan is a former academic with a background in archaeology, anthropology, and folklore, which she now puts to rather cockeyed use in writing fantasy. She is the critically acclaimed author of the Lady Trent series, as well as the Doppelganger and Onyx Court novels, six novellas and more than thirty short stories. She won two Isaac Asimov Award for Undergraduate Excellence in Science Fiction and Fantasy Writing Grand Prizes.