Read the excerpt from Lord of the Flies.

Simon’s head wobbled. His eyes were half closed as though he were imitating the obscene thing on the stick. He knew that one of his times was coming on. The Lord of the Flies was expanding like a balloon.

What is the effect of the phrase "one of his times was coming on" on the meaning of the excerpt?

It emphasizes that Simon has found a way to escape the island.

It implies that Simon is about to have an epileptic episode.

It hints that Simon is about to be killed by the boys.

It refers to the idea that Simon has just had a terrible nightmare.