I'm not sure specifically as I haven't read it. But generally, a short story set in the gloaming (twilight) might be about a variety of things like mystery, change, or a moment of reflection. It could involve characters experiencing something unique during that time of day, perhaps a strange encounter or a realization.
Unfortunately, I have no information regarding the author of 'the gloaming short story'. It could be a self - published work, in which case the author might not be widely known. You could try searching for it in specialized short - story collections or by using search engines with more detailed keywords to try and track down the author.
Maybe there is an older character who is reminiscing about the past. This character could be the central figure, and then there could be younger characters around them, such as grandchildren. The interactions between these generations could be an important part of the story, especially if the gloaming is used as a backdrop for the transfer of memories or family stories.
Another possible theme is the idea of reflection. The gloaming is a time when things are not as clear as day, but not yet fully in the darkness of night. This could be used to represent a character's internal state of self - reflection, looking back on their life, decisions, and experiences.
Well, without more information, it's hard to say exactly. 'Gloaming' makes me think of dusk or twilight. So the graphic novel could be centered around events that occur during this time of day. It might involve supernatural elements that are more active during the gloaming, like ghosts or otherworldly creatures, and the story could be about how the characters interact with them.
There might also be characters that are minor in the original but become more prominent in the fanfiction. They could be given more complex personalities and important roles in the 'gloaming glee' story.
One idea could be exploring the backstories of the characters in more depth. Maybe there are hidden pasts that influence their actions in the 'gloaming glee' world.