It was stolen by Jon Spiro, and had to be retrieved because it has the potential to compromise the People's security. It is encoded with an Eternity Code (see below). Created by Artemis Fowl II, it is a code like any other code, except that it uses a completely new language as a base language, making it next to impossible to translate. As noted by one of Jon Spiro's staff members, Dr. Pearson, and Artemis Fowl II himself, theoretically it would take an eternity to get through the code.