Revelation 9:1-2 And the fifth angel sounded his trumpet: and I saw a star out of the heaven fallen to the earth; and there was given to it the key of the pit of the abyss.

Darby⁽ⁱ⁾ ¹ And the fifth angel sounded [his] trumpet: and I saw a star out of the heaven fallen to the earth; and there was given to it the key of the pit of the abyss. ² And it opened the pit of the abyss; and there went up smoke out of the pit as [the] smoke of a great furnace; and the sun and the air were darkened with the smoke of the pit.