I then remembered the ending of THE MYSTERY OF EATUM HALL...and remembered MARK R punning with programming:

CAKE

CA-KE

CAR-KEY

remember PAT A CAKE PAT A CAKE BAKER'S MAN...which the TASCHMANNS used to do upon the seemingly lifeless body of an ill cult slave that they had tortured into oblivions...

See previous notes in relation to HANS CHRISTIAN ANDERSEN and how hte ill cult was introduced to TURKEY via a BAKER...