The Gate of the FourKeys

In the final section I am unable to find the code symbols to enter to unlock the sequence.  I have the two separate sets of 5 and am not asking for a cheat, just where they might be found or a hint.  I've tried a combination of the symbols as well as the 32114234 sequence, but no luck.  Thanks in advance

I'm not sure which section you're talking about. If you are in the 4th realm where you obtain the purple key there is a 5 character combination written on the wall a few screens to the left of the combination buttons. Just enter the symbols in the order they are shown. I don't think you are referring to the actual final area, but if you are...

The number sequence you gave for the Yeti cave is incorrect. I'm just pointing it out so nobody mistakenly goes by it (like I just did.)

Where can I find this level?

It's on KnyttLevels.com

Ahhhhh, found it: The Gate of FourKey (FourKeys minus the "s").