Cynthia Riggs has written at least 12 books. Their most popular book is Deadly Nightshade with 7 saves with an average rating of 2.5⭐.
Series
7 primary books9 released booksAuthored 67% of series
Martha's Vineyard Mystery is a 9-book series with 9 released primary works first released in 2000 with contributions by Cynthia Riggs, Philip R. Craig, and William G. Tapply.
Series
2 primary books1 released bookAuthored 100% of series
Cozy Case Files is a 1-book series first released in 2017 with contributions by Ellie Alexander, Donna Andrews, and Cate Conte.