I had a nice set of hints of increasing spoilerish-ness, but for some reason the reply didn't go through and the forum went down for me for a bit. So now I have to remember what I said before, and it won't be as good.
Hint:
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×I had to go to the upper right corner of the little room with the trapdoors in order to solve the puzzle.
Further hint:
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×You need to move in the opposite direction first.
Spoileriffic:
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×Get the mimic stuck on the force arrow before you move to the corner.
Game on,
____________________________
"
He who is certain he knows the ending of things when he is only beginning them is either extremely wise or extremely foolish; no matter which is true, he is certainly an
unhappy man, for he has put a knife in the heart of wonder."
-- Tad Williams