One of the Detour options is called Alphabetized. They visit the library, which is huge. They get a list of books, and that list is written in Cyrillic, which is an alphabet very different from ours. Then they have to go to miles and miles of handwritten card catalogs to look up four books. Finally, they travel to by horse and pony cart to the secret dungeon of the library to pull the books off the shelves. When they present the books to Olga, the head librarian, she will give them their next clue.