If you look next time you'll see at least one of the kids by the fire. They've probably thrown their chewing gum wrapper or similar on the fire.

That is just to cute. Chewing gum. I've heard that swooshing sound a lot by the fire. I never thought to see who was by it.
Also I watched the village when I heard the chimes, but still didn't see anything as far as mushrooms or collectables. I just thought it was just letting us know that Isola is a little mystical.
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You cannot do a kindness too soon, for you never know how soon it will be too late.