He added two further novels of historical romance to his published output before 1900.
Harris died in 1993, but not before writing a further 15 novels.
He published one further novel in 1952, then 5 novels a year in both 1953 and 1954.
This was followed in turn by three further novels, a computer game, and various other media formats.
At least one further novel was in preparation, however no more appeared.
During these years he published a further 8 novels.
Since 1992, he has produced a further nine novels, and about twenty short stories.
He appeared in a further four novels, and several short stories.
She published a further ten novels under that name.
Over the next ten years he published a further four novels.