Name this work about English schoolboys alone on an island, written by  William Golding.
Near the end of this novel, an officer says "I know. Jolly good show. Like the Coral Island." In   one scene in this novel, Roger and Maurice destroy a sand castle, and one character camouflages  his face with charcoal before hunting a pig. Two characters in this work find a downed pilot whom   they claim to be a beast, which Simon finds to be false. Those two characters are twins who become  known together as "Samneric" ["Sam 'n' Eric"]. In this work, the conch shell is broken when Piggy  is crushed by a boulder. Name this work about English schoolboys alone on an island, written by  William Golding.
Near the end of this novel, an officer says "I know. Jolly good show.
Lord of the Flies