Celestial Realms boasts three chapters packed with information on the spiritual side of life in the Emerald Empire, covering the cosmology of the Spirit Realms and the Phoenix Clan’s roles as the caretakers of Rokugan’s soul. With new player options and adventure seeds sprinkled throughout, from the introduction of the Centipede Clan to the ancestral swords belonging to each of the Great Clans, this 144-page full-color sourcebook is an indispensable resource for Game Masters and players alike.