check out our:
"It was furry. There was something moving behind its head—wings. The beast moved too—"
"That was awful. It kind of sat up—"
"There were eyes—"
"We ran as fast as we could—" (6.67-75)
Samneric do see something; they see the dead parachuter. But their fear makes them see something totally different from what actually exists—like turning a pile of clothes in your closet into a monster.
Simon, walking in front of Ralph, felt a flicker of incredulity—a beast with claws that scratched, that sat on a mountain-top, that left no tracks and yet was not fast enough to catch Samneric. However Simon thought of the beast, there rose before his inward sight the picture of a human, at once heroic and sick. (6.140)
Simon may not be a brain like Piggy, but he's a smart guy; he knows that the beast is unbelievable. But that doesn't mean he's not afraid. Like we said, he's a smart guy; he knows that this whole situation is heading downhill fast.
Something deep in Ralph spoke for him.
"I'm chief. I'll go. Don't argue." (6.155)
Notice that Ralph isn't the one agreeing to go look for the beast; it's the chief inside of him. He's a good example of how power can actually make you better. If you know you have people depending on you, and if you take that responsibility seriously, then power can be a positive force.