“The Echo Park Castaways” is a heartfelt novel by M.G. Hennessey that portrays the lives of children in the Los Angeles foster care system. The story centers around Nevaeh, Vic, and Mara, who have been staying with Mrs. K in Echo Park for over a year. Each child comes with their own set of challenges: Nevaeh acts as a surrogate parent, Vic lives in a dream world due to his ADHD, and Mara is quiet and withdrawn.