Splinter is the doorman of the Civic Festhall. Though he seems a bit cold, he will answer whatever questions the Nameless One has about the Society of Sensation or the Festhall. He must be spoken to in order to join the faction.
Splinter will sell and identify items if the Nameless One is a sensate. See Sensate Vault for more information.
While the public sensoriums can be accessed by anyone, the private sensoriums are only open to those who are a member of the Society of Sensation. There are a few ways the Nameless One can gain access to them, which is necessary at some point in the game:
- Join the Society of Sensation (grants the Sensory Touch ability and 10,000 XP; unlocks the Tattoo of Sensation and Tattoo of the Sensates at Fell's Tattoo Parlor)
- Complete the Clerk's Ward quest involving Aelwyn and Nemelle, and learn that a prior incarnation of the Nameless One was a sensate (this allows the Nameless One to access the sensoriums without "joining" the faction – useful if you are already a member of a different faction)
- Convince Splinter that the Nameless One is already a sensate (charisma of 16 or higher)
Sensory stones grant XP the first time they are used, so be sure to explore.