We run as fast as we can.

Each step in this low gravity launches us into the air for several seconds. Meanwhile, selenites appear from everywhere and spears whistle past us. We can't outrun them all! Suddenly I see a chance to hide round a corner, near the caves in the roof.

We made it! We managed to dodge behind a building and then into these caves - they don't know where we are. For a while we stop and catch our breath. We can't go back down, we have to explore these caves and try to find the surface before the selenites discover us!

Should we go left Or go right? Or go up? Or go down? Or do something else?