Mercedes Lackey

The seventeenth novel in the magical alternate history Elemental Masters series follows Amelia Stonehold and Serena Meleva as they navigate property acquisition, marriage proposals, and other ancient horrors in Regency England, but with the help of elemental magic
The year is 1815, and an American, Miss Amelia Stonehold, has arrived in the Devon town of Axminster, accompanied by her "cousin" Serena Meleva. She’s brought with her...