Hey, I don't know whether those comments are regarding me or someone else but either way I'll try to help (sorry for late response) so the main character is having these knock out kinda dreams about this tunnel and what happens in it. I'm assuming that's the main plot/focus of the story so coming up with a way to continue that story is more important than any sub plots. So assuming you really can't think of how to continue it (cause I don't want to influence your ideas or anything), you said something about it being a different dimension so it could be the main character switching in between alternate dimensions, uhhh it could be visions of the future, just some kind of nightmare realm or something. Just come up with a base like that and build up, so why is this happening to her? How is it happening to her? And then story should come through that. Then you can build on other subplots, like character plots and stuff. So then tying other character like Aimee and Malinda in as support characters or as directly influencing the story line so like antagonists I think. I'm realising that I haven't given you very many ideas so... Sorry bout that but I tried :). Usually what I do when I can't think of what to do next is just think about it before I go to bed, or literally use your dreams for inspiration or some bs like that, I often just wait it out to come up with something. It just depends how bad you wanna write it, I guess. Sorry I couldn't be more help but if you need any advice or anything just ask or DM me and I'll try to help. :) I did like your story though, or what there is so far.
