Pat Abbott mystery

The Turquoise Shop (1941)
The Golden Box (1942)
The Yellow Violet (1942)
The Applegreen Cat (1943)
The Pink Umbrella (1943)
     aka The Pink Umbrella Murder
The Amethyst Spectacles (1944)
The Indigo Necklace (1944)
     aka The Indigo Necklace Murders
The Cinnamon Murder (1946)
The Shocking Pink Hat (1946)
Murder On the Purple Water (1947)
Black Cypress (1948)
The Flying Red Horse (1949)
The Daffodil Blonde (1950)
Murder in Blue Street (1951)
     aka Death in the Blue Hour
The Polkadot Murder (1951)
13 White Tulips (1953)
Murder in Bright Red (1953)
The Coral Princess Murders (1954)
Death in Lilac Time (1955)
Horror On the Ruby X (1956)
The Ultra-violet Widow (1956)
The Buttercup Case (1958)
The Man in Gray (1958)
     aka The Grey Stranger
Death-wish Green (1960)
The Amber Eyes (1962)
Body Beneath a Mandarin Tree (1965)