Dantalion and Sytry must return to the netherworld when the four Kings of Hell come together for their annual summit.  None among the crowd realize that the Grand Duke Baalberith has secretly sent a horde of demons to the human world to kill William, the Elector who inherited King Solomon's soul.
That reminds me, he should be here now...
Eso me recuerda que esa 
molestia estará pronto aquí.
Eso me recuerda que ese 
incordio estará pronto aquí.
Aliás, a peste estará aqui em breve.