“Her fictitious nature was of great assistance to her. It is far harder to kill a phantom than a reality. She was always creeping back when I thought I had despatched her. Though I flatter myself that I killed her in the end, the struggle was severe;”
fictitious- adjective
of, relating to, or characteristic of fiction
not true or real
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I understand that the angel in the room must have not been real. The fact that she (the angel) was more of a conscious being and a thought than a real person made it more difficult to avoid her. Each time that it was attempted by the writer to send the angel off or rid of the spirit she would just come back. Finally the angel was defeated and killed, though it was a struggle.
