Cavalieri Della Morte is a 10-book series with 10 released primary works first released in 1964 with contributions by Dani René, Brianna Hale, Yolanda Olson, Claire Marta, S.M. Soto, Lexi C. Foss, Ally Vance, Anna Edwards, Jo-Anne Joseph, Ashleigh Giannoccaro, and Murphy Wallace.