Ashes of London by Andrew Taylor

A sweeping historical look at the Great Fire that burned most of London in the 1600's. The city was on fire and so was the politics. A young man runs into a burning St. Paul's and as another tries to save him only to find out he is a she and his cloak is lost. Marwood is looking into a series of murders and searching for a young woman, Catherine Lovett who the king is hoping will lead them to her traitor father. Cat is searching for her father as well while trying to stay just ahead of rapists, family members who wish her harm and will take her inheritance away from her. She dreams of working with Christopher Wren and other architects who have been given the task of pulling a new London out of the ashes. Cat-and-mouse political intrigue where one's loyalty to family means disloyalty to the crown and can have fatal results. Fans of Hilary Mantel will enjoy this well-researched mystery.