Cassandra Peterson’s memoir “Yours Cruelly, Elvira: Memoirs of the Mistress of the Dark” offers insight into the real person who lies beneath the persona of Elvira. Peterson describes her path from a difficult upbringing to stardom in Los Angeles, as well as her travels through Europe, Las Vegas, and her transformative meeting with Elvis Presley. A frank and frequently amusing chronicle of her ascent to become a Halloween icon is given in the book.