House Phiarlan is an elven dragonmarked house throughout Khorvaire, although they are now based in Sharn, Breland their former base of operation in Cyre having been destroyed in the Day of Mourning. The Carnival of Shadow is the traveling circus of House Phiarlan, filled with illusion, acrobatics, and exotic creatures and entertainers from across Khorvaire.
House Phiarlan possesses the Mark of Shadow. The oldest living dragonmark the Mark of Shadow first appeared on Aerenal. This mark grants various magical benefits that relate to divination and illusions. The house turned these power to the arts of entertainment as well as the skills of actors, musicians, and acrobats for which the Phiarlan are legendary. During the Last War some members of the house disapproved of the houses involvement and broke away forming House Thuranni.