He tortures them
Roger and the twins eat chocolate pudding when they first arrive at the Castle Rock.
Piggy is killed at Castle Rock in Lord Of The Flies.
Roger does not say anything to Ralph as they approach the "rock castle" in the Lord of the Flies. Instead, Roger silently throws rocks at them from above, demonstrating his cruelty and violent tendencies.
While the boys are at castle rock (near the end if the novel), Roger is getting ready to roll a boulder on Piggy, which kills him.
Exploring the castle rock formation is scary because it is unstable and dangerous, with potential risks of falling rocks and collapsing walls. In "Lord of the Flies," the character who sits on the castle rock is Roger, who becomes a symbol of violence and savagery within the group.
The boulder which hit Piggy with a glancing blow and knocked him off the cliff was set in motion by Roger. Roger pushed the lever, which was wedged under the rock, and caused it to tumble from the top of castle rock.
Piggy is smashed by a boulder at Castle Rock. Roger rolls the boulder down and kills Piggy.
The address of the Castle Rock Museum is: Po Box 1572, Castle Rock, CO 80104-6072
The address of the Castle Rock Public Library is: 137 Cowlitz St W., Castle Rock, 98611 8998
The web address of the Castle Rock Museum is: www.castlerockmuseum.org
The address of the Castle Rock Chamber Commerce is: Po Box 721, Castle Rock, WA 98611-0721
Piggy and Ralph are in a last attempt to stop the savagery at the Castle Rock, where the savages have camped. Roger is atop the castle as the others argue, and Roger pivots a lever that causes a boulder to fall, and it falls onto Piggy, shattering the conch and knocking him over the edge to his death.