* He is a relatively unknown author: His works might be niche or unpublished.
* He uses a pen name: It's possible he publishes under a different name.
* There is a mistake in the name: There might be a slight misspelling or variation in the author's name.
To find information, you could try:
* Checking online book databases: Search for his name on websites like Goodreads, LibraryThing, and Amazon.
* Contacting libraries and publishing houses: Ask if they have any records of an author named Malcolm Quantrill.
* Looking for biographical information: Search online for any biographical information about him, perhaps through social media or personal websites.
Without more information, it's difficult to determine if Malcolm Quantrill is a real author and what he has written.