Trapped

This dream actually happened before the last post about the river. It's a few days old and the details are getting fuzzy.

I was in a building, I presume a school. Something, I don't know if I knew in the dream what it was, was keeping me from getting out. Some type of invisible force or presence pressed upon me to keep me trapped in the building. At some point I made it out to the school yard which was surrounded by a 6' chain link fence. I searched all over the yard trying to figure out how to escape, all the while the unseen presence kept me in fear. At some point I was able to find a way out and the last thing I remember is running as fast as I could away from the school yard along a sidewalk into a tree'd neighborhood.