Books by Helen de Guerry Simpson

Ask A Policeman

by Dorothy L. Sayers, Cecil John Charles Street, Gladys Mitchell, Anthony Berkeley, Milward Kennedy, Helen de Guerry Simpson, The Detection Club, Agatha Christie, Martin Edwards

1933

The Anatomy of murder

by Helen de Guerry Simpson, Helen Simpson, Cecil John Charles Street, Margaret Cole, E. R. Punshon, Dorothy L. Sayers, Francis Iles, Freeman Wills Crofts

1937

Enter Sir John

by Clemence Dane, Helen de Guerry Simpson

1928

Outcast and the Rite

by Helen de Guerry Simpson, Melissa Edmundson

2022

Printer's Devil

by Clemence Dane, Helen de Guerry Simpson

1930