Well, it's difficult to determine. Maybe it's a mix of real and fictional elements. Without more background information, it's tough to tell for sure if it's a true story.
Definitely. 'A Room of One's Own' is classified as a novel that explores various themes and ideas. It has the typical elements of a fictional narrative found in novels.
Maybe. It depends on the theme and style of the existing stories in the collection. If the new short story fits well with the overall mood, for example, if it's a collection of horror stories and the new one is also a horror story with a similar tone, then there could be room. However, if it's too different, it might seem out of place.
Typically, 'one room spy novels' might focus on intense mental battles. Since the setting is limited to one room, the characters have to rely on their wits and psychological manipulation. For example, in some cases, a spy being interrogated in a single room has to outsmart the interrogators through wordplay and deception.
I don't think it's true. Most of the time, stories like this are made up to capture people's imaginations and don't have a basis in real events. They might draw inspiration from various sources but aren't factual.