Elves play pipes while the goblins sing

[cyrano]

For those creative lot among you....
Players in my 7th Sea game are being sent on a quest to allow them to enter the Summer Country, home of the fairies and piskies.
I'm looking for an appropriate quest, and turn to those of you who are not in my game and perhaps have a mean streak in you to offer me suggestions.
My two main qualifications:
It should sound like something you would encounter in a fairy tale of some stripe.
If it would benefit a pragmatic, somewhat otherworldly Scottish family who is setting the quest, that would be especially good.
My players are warned--clicking on comments may reveal spoilers.

Comments

[drastic.livejournal.com]

I have my moments. :)

Plus, there's a variety of hooks in there for future bits as needed--for instance, what the heck happens to mortal economies when faerie gold starts circulating through them? I've no idea, but I figure you can go in all sorts of directions with possible answers from grim(me, the bros.) to surreal to uplifting to comedy to all points in between.

[cyranocyrano.livejournal.com]

Exactly one of the things I planned to bring up--or at least what happens when the rainbows start disappearing/going extinct and a certain Scottish family suddenly has a lot of gold at their disposal?