The Book of Retribution (裁きの書 Sabaki no Sho), sometimes called the "Tome of Judgement" is a magical book used by Zexion, a member of Organization XIII. This Lexicon which is similar to the Shade Archive, one of the many items in the Kingdom Hearts universe, allows Zexion to steal power from others and create illusions at will (even though he can already create illusions, the illusions that he uses with the Book of Retribution are more powerful). He also uses it to ensnare his foes into another dimension.