Some works such as The Arrandel Motto were initially published under her pseudonym of Mark Hardcastle .
She was a prolific writer , demonstrated by the list of her work detailed below , which is almost certainly not comprehensive .
Some works such as The Arrandel Motto were initially published under writer 's pseudonym of Mark Hardcastle .
She was a prolific writer , demonstrated by the list of her work detailed below , which is almost certainly not comprehensive .