Left Eye

[kae]

I feel as if I am missing something obvious.

I have the right eye, and, based on the mural, I believe the left eye is in nine fragments somewhere. I already have the trefoil key from the zodiac clock, which I'm guessing gates wherever the fragments are.

I have no idea where to go. I have opened every door in the hotel and solved every puzzle in it except the supercomputer, I have wandered around both the red maze and the mirror maze, and I am stumped at this point. It doesn't feel like something I can reason my way through, and I'm tired of wandering the same hallways, so I'm asking for some help!

Thanks!

[hololulu]

Look up the Triquetra symbol. Is there anywhere in the game you’ve seen that symbol? Someplace that has 3 things?

[hololulu]

Also, be sure to read the key’s item description by selecting it in your inventory! They usually hint at how to use them.

[NishYou]

If you've wandered all around inside the hotel and the red maze+mirror maze.... What other areas left to wander around in this game? Wander there.
And also take some time to read 'Current possessions' description whenever you get an item as the other user suggested, they include subtle hints sometimes.
And check your mental notes list, see what is not striked off yet, sometimes that will lead you to revisit something you forgot about

Actual answer if you want it direct:
In the forest you find a cemetery, there's a puzzle there that can use the Triquetra Key as the input that lets you into the area where you can find the other eye and some more puzzles. You will need Crucifix key to open the Cemetery gates.
You get the Crucifix key by solving the puzzle for the statue inside the 'Chapel' area in the Hotel which you can jump into

[kae]

Thank you!

... I totally forgot about that whole area of the game. I went there once at the start, and then never went back again. Oops.