sinking thtough shark-infested water, trapped in a cage, is not everyone's idea of fun, but oliver was absolutely thrilled! he waited impatiently for the shark to appear, and sure enough, within minutes, five huge great whites cautiously approached the cage and started circling it. they were so close he could see their sharp white teeth. oliver had never realised how beautiful these animal were and how gracefully they moved. suddenly, one of them crashed against the cage, knocking him over. picking himself up, he saw the door of the cage lying open, the lock broken!