The Second Death: the devil torturing souls as well as being tortured himself in hell

"And death and hell were cast into the lake of fire: this is the second death. And whosoeuer was not found written in the booke of life, was cast into the lake of fire." [Rev 20:14-15 KJB]

(Très Riches Heures du duc de Berry, 1411/16 CE, Musée Condé, Ms.65, f.108r)