> I've found the sandstone caverns, but I haven't found anything useful in them, except petrolythium shards, which I'm not even sure how to use yet. I got the boulder off the miner's leg, but that didn't do much for me. I have the papers incriminating the director, but no matter what order I show them to Kevin in he doesn't care. The crazy janitor ran off with the wrench and I can't find him. To top it all off, I can't find the last tube. To put it simply, I am stuck. Could someone help me out with any of these problems?

A few things you can do:

1. You opened the third barrier in the mines (near the sandstone caverns), so now when you jump from the mine cart near there, it doesn't derail, and you can hear it moving through a tunnel nearby. Give you any ideas, based on what you've done earlier?

2. There's one thing you missed finding in the sandstone caverns near the bottom. Perhaps you haven't found the way there yet, which would also tie in to #1. Make sure you have mapped out all the caverns and exits.

3. You can use a recently acquired passcard to gain access to a room you haven't explored yet.

4. For the wrench, you'll need to talk to someone on the Corolis working with some delicate instruments.

All the other things you mentioned need one of the four numbered items to be done first.