Premises from Dreams

So I don't remember very many of my dreams, which is a shame because I can come up with some cool stuff. I do keep a dream journal on Google Docs just in case I remember more than a single shot and today I just recorded my third entry! I want to share it and hear some thoughts as to whether or not it's something I could make a short story out of. I am tempted to cut the idea simply because I have another, more important book that has a similar premise but I dread it because I did that with another idea, Witches' Blend, because it was too similar to the sequel for a webcomic I have planned and that sequel is really important in the long-term. Anyways, here it is:
The dream opens in a blue observatory. I'm not in the dream, instead our main characters are Jocelyn Joyce(I don't know if that's a celebrities name or not but she's an original character) and her brother Bensy(weird name for a teenage boy I know but stick with me, I don't like it either). After some shots of them, some kids, and their mentor(a standard Merlin type), they go to another world, ours. Jocelyn tries to repair her broken bike(with pin money, I distinctly remember pin money now. It doesn't work out for her) while Bensy helps the mentor take the kids on what appears to be a field trip. This is where it gets weird, our world is warping around the presence of Jocelyn and Bensy. It culminates in a scene taking place in a library where Bensy's mom gets possessed and tells Bensy that the mentor is evil and he believes that joy is a sin. The dream ends there.

 

You can take the premise for yourself if you want. I don't mind, mostly because I've already got something similar going on. Odds are you'll probably do a better job with it than I can.