Besides this practically ruining the game for me, the fix does not work. I have seven one-eyed beasties, have gotten them all howling at once, individually, and in various combinations. To no avail. Four keys is all I get.
This is an illogical, unintuitive, game spoiling puzzle, even if it worked correctly. For someone determined to solve all the wonderful puzzles, this one, frankly, stinks to high heaven. Having it not work causes me to lose faith in the developers who have succeeded in wasting more of my time than I care to mention. Boo!
And boo again.