The riddle that never was /
Blyton, Enid.
Ludlow, Patricia.
Blyton, Enid.Mystery that never was.
Blyton, Enid.Young adventurers and the mystery that never was.
Worksop : Award Publications,
2009.
"... first published in Great Britain under the title The mystery that never was by William Collins Sons & Co. Ltd in 1961. First published by Award Publications Limited 2004 as The young adventurers and the mystery that never was"--T.p. verso.
Mystery games