Sinda Cheri Floyd is actually a pen name for 2 sisters, Sinda and Cheri, who write mysteries for the Young Reader market. The characters in these stories are loosely based on the 3 Floyd sisters when they were younger. Their older sister is Lynda.
Sinda and Cheri have both been teachers professionally and have published many nonfiction articles and books between them. They are having a ball writing these sister stories!