Colquhoun expressed herself in poetry and prose throughout her life. She was particularly proud of the fact that her essay The Mantic Stain (1949) was the first article to be published in English on automatism. Her love of words was first displayed in The Prose of Alchemy, a celebration of the rich imagery to be found in alchemical texts. Later it appeared, rather unexpectedly, in the publication of a glossary of Cornish words and phrases
Over the years she took part in poetry readings, initially in London and later in Cornwall. She was a member of the West Country Writers Association and regularly took part in its activities.
There are many manuscripts that deal with technical magical matters. Some of these have a known publication history, others may have appeared in small-circulation specialist journals whilst yet others may have been written for private study and research. A number of manuscripts concerning her magical knowledge and activities have been edited and published by Nichols (2007). Her personal papers, which include some of an artistic and occult nature, as well as a great number of unpublished poems and prose pieces, are in the archive of the Tate Gallery Archive, where they have recently been catalogued.