Vault of the Gnome King

To Petsia, the most desirable party was the fancy dress ball thrown by the elite merchant class youths every year. This year was different - she met two girls, Li and Renee, from a faraway place called Earth, who used magic to demonstrate weird clothes from their homeland. Unfortunately, they had gotten a liiiiiittle drunk, and their magic ran a little amuck.

Now, everything Petia wears turns into a white short dress, a white cap and white pumps - apparently the costume of someone Li called "Smurfette". A dress that can only be called covering if you don't bend over or rise your arms too high - restrictions that come hard to an active young woman.

So, what do you do? You go adventuring with these girls, of course. Never mind such inconveniences as being taken for a bag of money by the automated transport system of the king of Gnome Lake and carried deep into his subterranean money vault, past the guardian ropers and their long tentacle arms...