Gabrielle Morton

The Great Office Mystery

Character: Sadie

Release date: 05/01/1928

Silken Threads

Character: Sadie

Release date: 05/01/1928

The Clue of the Second Goblet

Character: Helen

Release date: 05/01/1928

The Legend of Tichborne Dole

Release date: 01/01/1926

Hampton Court Palace

Character: Katherine Howard

Release date: 01/23/1926