Here be spoilers! Not many, because I haven't got far enough to spoil it for anyone, but be warned: there could well be spoilers soon.
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Okay, I'm in the 2nd floor Hexagonal Tower. I've examined the long bed and been informed that there's something in the gap between the headboard and the wall, but I'm damned if I can figure out how to take it. I can't GET SOMETHING, REACH INTO GAP doesn't work, PUT HANDS IN GAP informs me (quite worryingly) that I'm not carrying my own hands! I've tried moving and pushing and pulling the long bed, but to no avail, and the only hint available advises me to check the beds, which I've already done.
Any idea how I retrieve the mysterious something from behind the bed? (And yes, I tried "retrieve" as well.