From a New York Times obit by Neil Genzlinger headlined “Carol Higgins Clark, Mystery Writer, Is Dead at 66”:

Carol Higgins Clark, who as a young woman retyped manuscripts by her mother, the famed mystery writer Mary Higgins Clark, before going on to become a best-selling suspense novelist herself, died in Los Angeles.

Ms. Higgins Clark wrote more than a dozen novels on her own, beginning with “Decked” in 1992, and several others with Christmas themes in collaboration with her mother, who died in 2020.