As soon as you get control again, go back up the stairs that are (I think) right behind you. It will bring you up by the Spook. Then: SPOILER
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touch the brass ring on the arm and see what happens...

RE the letter on the ceiling in the carousel area: Just give me a little hint re getting this thing down. Have attached the Spook's arm, played the tune for Milo. Harlen is out so can't get the Spook's power turned on. Can the letter wait awhile at this point?

No....use something else you go at the park.

Oh, drat!!!! I've been standing in the wrong place trying to zap that letter. Didn't go all the way up the stairs. How frustrating!!! Thanks, Linda.