Enid Blyton every year in addition to many other novels, short stories and books. In 1946 Blyton launched the first in the Malory Towers series of six books based around the schoolgirl Darrell Rivers, "First Term at Malory Towers", which became extremely popular, particularly with girls. The first book in Blyton's Barney Mysteries series, "The Rockingdown Mystery", was published in 1949, as was the first of her fifteen Secret Seven novels. The Secret Seven Society consists of Peter, his sister Janet, and their friends Colin, George, Jack, Pam and Barbara, who meet regularly in a shed in the garden to discuss peculiar
Enid Blyton for the "most famous and successful of children's authors with her enormous energy and computer-like memory" to be losing her mind and suffering from what is now known as Alzheimer's disease in her mid-sixties. Blyton's situation was worsened by her husband's declining health throughout the 1960s; he suffered from severe arthritis in his neck and hips, deafness, and became increasingly ill-tempered and erratic until his death on 15 September 1967. The story of Blyton's life was dramatised in a BBC film entitled "Enid", which aired in the United Kingdom on BBC Four on 16 November 2009. Helena Bonham Carter, who