|  Charles Augustus Carlow Muir was born in Ontario, Canada of Scottish parents. He was an author, journalist, and historian. He also wrote under the pseudonym 'Austin Moore'. | 
Titles and year of publication:
| 1) The Third Warning | 1925 | 
| 2) The Black Pavilion (US Title: The Ace of Danger [1927]) | 1926 | 
| 3) The Blue Bonnet | 1926 | 
| 4) The Shadow on the Left | 1928 | 
| 5) The Silent Partner | 1929 | 
| 6) Beginning the Adventure (US Title: The Dark Adventure [1933]) | 1932 | 
| 7) The Green Lantern | 1933 | 
| 8) The Riddle of Garth | 1933 | 
| 9) The Crimson Crescent | 1935 | 
| 10) Raphael, M.D. (short stories) | 1935 | 
| 11) The Bronze Door | 1936 | 
| 12) Satyr Mask | 1936 | 
| 13) The Man Who Stole the Crown Jewels | 1937 | 
| 14) The Red Carnation | 1937 | 
| 15) Castles in the Air | 1938 | 
| 16) The Sands of Fear | 1940 | 
| 17) Candlelight in Avalon | 1954 | 
| As 'Austin Moore' | |
| 1) Birds of the Night | 1930 | 
| 2) The House of Lies | 1932 |