about nine o'clock
They admitted the next day that they thought the world was coming to an end ! '' `` Y' all sure enough surprised 'em ? '' `` And how ! See , we waited till about nine o'clock that Saturday night , when we knew they 'd be sound asleep . Me and Jim-Bo and Hi climbed up on the roof with the washtubs and hammers while the rest of the boys and all of the girls were easing their way up through the hall . Then , when Jim-Bo let out the whoop , we all cut loose ! Wow !