Where is Xyzzy and what are soplos?

:Xyzzy's Adventure:

Head to Half-Haven Isle and talk to Ruthie. She will send you to Nonesuch Isle. Search around for Xyzzy. Xyzzy needs:

10 moonbeams

2 silver linings

1 box of popcorn (Wington food shop has unlimited popcorn)

Gather all supplies and return to her. Reward: Ruby necklace and Amethyst necklace, 75 qp.

Jennee- Bay Server