You have been imprisoned within the labyrinth. You must escape before you die of starvation (6 minutes).
You are on the sixth sublevel of the labyrinth you must search for the stairs to the levels above.
Reach the stairs to the outside world and you shall gain your freedom.
Beware, areas of the labyrinth that are out of sight tend to change.
This is a branch of my DungeonCrawl repo. The sketch is still called DungeonCrawl.ino. Edit: Be sure to switch to the
Edit: I put Labyrinth in its own repo to simplify things.