Dizzy The Dragon Trap help needed

Really need help with this game! I have found the meaty bone in the oak tree and given it to the dragon and then given honey received to the bee! Items found : skull, mushrooms, the tuft of grass, clump of leaves and gold coin. But can not get any further!
So any help much appreciated.

@jon1181118 I'm stuck on the same bit too.

@Adam @jon1181118
Have finally solved it, though it took hours of trial and error.
The item that gets you to the next puzzle is the

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coin

you need to

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stand at the very edge of the drop-down to the waterin 'What's down there'

.
Then, you

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drop the coin

. This allows you to finally

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speak to the Unknown thing

.
Enjoy!