I enjoyed that book when I was a teenager as well. It's kind of absurd because it starts out in the kids-discover-a-mysterious-artifact/phenomenon genre, and then suddenly turns into a irefvba bs Zl Fvqr Bs Gur Zbhagnva jurer gur xvq whfg fvgf va n furq sbe n lrne. V'z yvxr, "Ubj qvq gur nhgube xabj V'q rawbl ernqvat gung?"