Good job! No writer's block evident here. Perhaps it was your struggle that was reflected in the tension that drove the story. The characters struggle against something that seems indomitable. The end is really good. It's not a dream, it's a kind of nightmare that may not end. Perhaps the sinkhole is a wormhole.

Nicely created arc. You definitely have action :) Thank you for sharing this story, with us. We appreciate that you engage with other writers.