noon
But it was unsatisfactory work . The shifting sand , dry as powder at this depth , was constantly caving in and filling up the space . They tried making new holes , to the north of the old one , then to the south , then on the remaining sides . They were still at it when the whistle at the cold-storage plant blew for noon . Georgina rubbed a sleeve across her red , perspiring face , and shook the ends of her curls up and down to cool her hot neck . `` I do n't see how we can dig any more to-day , '' she said wearily . `` The sun is blistering .