Revelations in general starts to take a dark turn from 13 through 19. The most well-known part of Revelations is where all the movies about the End Times characters come from. It is odd that it is 13, the unlucky number. Let's see what you get if you read it straight. There is a beast with ten horns and seven heads, indicating that three people are not leaders of countries, but are kings of a type because there are ten diadems or crowns. That is, provided there is a direct link between the heads and horns.
A new beast arises, who brings forth the Antichrist and the False Prophet. Everybody is numbered among those who are under the control of the Antichrist. We are introduced to a head with a mortal wound.
That the saints need to endure this time.