Bell of summoning (Ulshat) (Neo)

Bell of summoning (Ulshat):

a small tap bell made from bronze that does not ring unless put on a flat surface.

The bottom bears the Brand of the Extinction King, and the associated slave bound to this bell, written in infernal runes.

Ringing it within an open barrier will summon Ulshat for the first time, and ringing it anywhere will notify her of your demand for attention, regardless of distance or conscious states.

Cannot be touched or handled by the slave bound to it.

Reference
Chapter 73 "End Of Arc 1"