Why are the little boys scared lord of the flies especially the one with the mulberry colored birth mark?

The little boys in "Lord of the Flies" are scared due to the growing lawlessness and savagery on the island. The boy with the mulberry birthmark, Simon, is particularly terrified as he senses the darkness and brutality that exists within the group of boys. The breakdown of societal norms and the emergence of primal instincts contribute to their fear and isolation.