i have gotten almost all the way through this game but i am stuck down in the lab/sub area! i have made my bomb, freed moira, gotten all my stuff done. i think its time for me to go to the observatory but i cant find my way back to the door leading to the raven chamber. arghhh, help please.......

After exiting the sub area, you want the exit between the red and blue labs. If not sure where you are, just go around the outside of the labs until get to an exit with stairs going down. Doesn't matter if bear right or left, just use the other exit out of entry ways. Don't forget the gems.

ok i have found what i think is the door back out to the raven chamber, its a wood door (correct?), but it wont open now! it just sits there being a door. im feeling pretty much frustrated at this point. argghhhhhh <img border="0" title="" alt="[Confused]" src="confused.gif" /> thanks for any and all help.

If you are where I think you are, Kali, there should be a device on the wall to the right where you can enter three numbers. If you want to know what they are: SPOILER
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