Gladys Mitchell:
Novels under the Pseudonym - Stephen Hockaby
In the 1930's, Miss Mitchell began writing under the pseudonym "Stephen Hockaby."  These novels depart the mystery genre, and some are historical adventures.  Her work "Grand Master" is noted to be one of her finest accomplishments.
Marsh Hay - 1933

Seven Stars and Orion - 1934

Gabriel's Hold - 1935

Shallow Brown - 1936

Outlaws of the Border - 1936

Grand Master - 1939