Carol E. Ayer writes two cozy mystery series: The HSP Mysteries and The Mother-Daughter Realty Team Mysteries. Both series are set in California, and both include cats and a little romance. The protagonist of The HSP Mysteries is Kayla Jeffries, a home baker and Highly Sensitive Person (HSP). The protagonists of The Mother-Daughter Realty Team Mysteries are Autumn Cassidy and Sierra Madison. Both women are recent widows.