The Ringmaster's Secret - 1953

The Haunted Showboat - 1957

The Mystery at Lilac Inn - 1930

The Witch Tree Symbol - 1955

The Message in the Hollow Oak - 1935

The Mystery of the Ivory Charm - 1936

The Secret of the Golden Pavilion - 1959

The Clue of the Broken Locket - 1934

The Secret of Red Gate Farm - 1931

The Mystery of the Brass Bound Trunk - 1940

The Bungalow Mystery - 1930

The Haunted Bridge - 1937

The Secret at Shadow Ranch - 1931

The Clue in the Old Album - 1947

The Clue of the Velvet Mask - 1953

The books are all in Very Good Condition with no page rips or tears. 

The covers are all clean, but do have some fading, there is some spine 

wear (one spine has a bottom piece missing, one spine has a tear, also a small tear on cover of one book (see images)..

Please be aware that there is considerable writing in most of these books:  inside front covers, on title pages and throughout  the text are words circled, sentences underlined and margin notes (please refer to images).