In above of fiery Phlegethos wastelands, far above in the churning skies lay Infractia, domain for a fallen celestial who has pledged oath of service with duke (or dukes) of fourth layer of hell. Very recently in Avernus there was some invasion done by eladrins which was deflected off with some losses on the troops but there was endless supply for corrupted mortal souls where to draw from new reinforcements for lost ranks while celestials have much harder time replenish their numbers.<br/><br/>Whenever it's lord, Tzadkiel the Betrayer is, he would soon get imp messenger which pops near him and squeaks message quickly; "Mistress Fierna wants your presence on her palace soon as possible lord Tzadkiel!" With same pop imp disappears, a typical imp messenger but unusual one to do directly up to the point. So Fierna must had pressed her orders regarding how deliver the message or imp was very busy.