And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollylon.

There, he is described as the king of a group of locust-like creatures with the faces of men, the hair of women, tails of scorpions, teeth of lions, and wings that sound like the thunder of horses' hooves charging into battle. The fifth angel of Apocalyptic tradition will open the bottomless pit, releasing these creatures that will, for five months, torment people that do not have the seal of God upon their foreheads.