I wrote The Etoys Castle (formerly called The Demon Castle) in 2006 with help by Kim Rose and Ted Kaehler. It was originally designed as a trilogy, but only the first chapter was included in the OLPC EToys distribution because of a technical problem (the event recorder and paint tool didn't work well). I published the screen shots here because I still like rest of the unknown story in chapter 2 and chapter 3.
You can obtain the original eToys project files from: http://metatoys.org/pub/demonCastle/.
Takashi Yamamiya (website)