Grimrock

Realy stuck on Frostbite tower. I've cleared out all 4 ways and got a load of gems the help scroll plus bought all the tips but still can't solve the puzzles. Think i might still be missing some gems? There is one door on level 36 which I can't open (south east section the door at the west end) is t...

Loving this dungen however i'm now stuck:

What to I feed the "I am direction door" in the high tower? Tried pretty much everything, maybe I didn't pick what I need up?


Edit: Nevermind just fund it on same level after going for 1 last look around.