Look at the opening descriptions and statements of Ralph and Piggy. What do the descriptions and statements tell you about each character's nature and value

The boy with fair hair lowered himself down the last few feet of rock and began to pick his way toward the lagoon. Though he had taken off his school sweater and trailed it now from one hand, his grey shirt stuck to him and his hair was plastered to his forehead.

The fair haired boy, Ralph, clambered down the rocks, seemingly unafraid.

The owner of the voice came backing out of the undergrowth so that twigs scratched on a greasy wind-breaker. The naked crooks of his knees were plump, caught and scratched by thorns. He bent down, removed the thorns carefully, and turned around. He was shorter than the fair boy and very fat. He came forward, searching out safe lodgments for his feet, and then looked up through thick spectacles.

Piggy is put of shape, cautious, and careful.