The Royal Castele Library is located near the top right of Castele Square. Inside there are two rooms.
North of the reception is a small library with a few useful tips about Reveria. This includes which enemies may be found where in nearby areas. Players may also find a hidden Fine Feather.
East of the reception area is where the player meet the alchemy master Flamel and his assistant Beaker. Players may also create their Alchemist crafts at the workstation.