The most well-known is The Devil's Mistress (1915), a supernatural horror novel centred on the real-life accusations of witchcraft made against Isobel Gowdie. Brodie-Innes is believed to have been one of Dion Fortune's occult teachers. (Fortune was also taught by such occult practitioners as Moina Mathers and Dr Theodore Moriarty).
The most renowned work is The Devil's Mistress (1915), a supernatural horror novel centered on the real-life witchcraft accusations against Isobel Gowdie. Brodie-Innes is believed to have been one of Dion Fortune's occult teachers, alongside Moina Mathers and Dr Theodore Moriarty.