 Mona died in her sleep, and, in a scene forever remembered in Pine Valley; Erica broke down and threw herself on the coffin of her mother.Myrtle Fargate (maiden name Lum) is a fictional character on the American daytime drama "All My Children", as portrayed by Eileen Herlie from 1976 to the actress' death.Even though Herlie died on October 8, her last episode aired on June 23, 2008.