The skeleton lock, the golem, and the third ending are all connected... and that's all I'll say for now.

I think I may have hidden the second skeleton key a little too well... but I'll see what happens.
The emerald lock thing is a bug, thanks.
There are gems. (More secrets to find?) I left bones out because I was going to have a puzzle centered around the Vi Altar that I ended up that I didn't have. There are no blue boxes because only a green box can solve the "Altar of Time" and I didn't want to confuse things.
You can get some nice items behind the turquoise doors, but they're not strictly necessary.
