Saundra Mitchell is an American novelist who has also written under the pseudonyms of Jessa Holbrook and Alex Mallory.
Excerpt from Wikipedia, available under CC BY-SA 4.0.

The springsweet
2012
ISBN 9780544003279
Defy the dark
2013
ISBN 9780062123541
The Vespertine
2011
ISBN 9780547482477
Out now
2020
ISBN 9781335018267
Grim
2014
ISBN 9781743566237
The Elementals
2013
ISBN 9780547853147