The Library of Skulls
How cool is it to have a library of skulls with colored lights in them. That is so much better than books! Books are cool, but skulls with lights = freaking awesome! Do books emit "sacred smoke" that leads to hallucinations with the added side effect of removing all language barriers. I think not! Do books predict the future? NO! Do books have different specializations? Do books have a special "index skull" to help find information? N....well, I guess they do. Um. but they don't light up in groovy colors!
There's even a "Sleestak librarian". Maybe that's what that hissing is just the Sleestak librarians shushing everyone!