seven o'clock
`` It is hot , this Gobi sun ! '' said Caterna . Alone sat Sir Francis Trevellyan of Trevellyanshire , calm and impassive in his car , utterly regardless of our efforts . At seven o'clock thirty yards of the line had been repaired . The night was closing in . It was decided to wait until the morning . In half a day we could finish the work , and in the afternoon we could be off again .