I dreamt that Andrea had broken up with me and I was hanging out with MBJ, again. She was being nice but I realized I had already had the awkward discussion with her and she had said she wanted to be just 'normal friends.' We were hanging around somewhere that felt like Sherman Ave but with a dead-end at the west end. She was planning a bike trip for a bunch of people. We had been driving around in her van.
I was playing Minecraft and was tunnelling under a mountain. I kept going deeper and deeper to avoid things and almost ran into an underground pool. I continued to dig my stairway so there was one block between it and the edge of the pool.
There was a metal box half-buried in my backyard. I had assumed it was just a box of phone cables or a manhole for some pipes, but one time I yelled into it and there was a really long echo. I opened it up and climbed inside and saw that inside was a room tall enough to stand in. There were walls of bars dividing the room into quadrants, and though it was dark and rusty I had the feeling the room extended farther out the other end. I could hear monster noises. I got out of there.