Shivetya was a colossus with three eyes, nailed to wooden throne with silver knives. His name meant deathless. He was ruling the Plain of Glittering Stone from the Fortress With No Name. He was also guarding the way to Kina's resting place.
Shivetya was tired of his eternal duty. He made a deal with the Black Company and helped them on numerous occasions. Once Kina was destroyed and the Nef agreed to take over the maintenance of the Plain of Glittering Stone, he was free. In the end Croaker granted him his wish, which was to find death. They did this by exchanging bodies making Croaker the caretaker of the Plain of Glittering Stone and the sixteen worlds it connected while Shivetya got to live in Croakers body until he died as Croaker would have.