seven o'clock
`` Come as soon as you can , but give us a whole day 's warning , first ! '' shouted Julie , to the four smiling boys below . They made much better time going back , as the trail from Grey Fox Camp was plain , and going down the other side of the crest was much simpler than climbing up . They got back to their own camp by seven o'clock , and were surprised to find Mr. Gilroy there before them , with supper all ready to eat . `` Well , this sure is good of you ! '' sighed Julie , dropping upon the grass with healthy fatigue . `` I thought you 'd appreciate it ; I had no exercise to-day , except what I got running the car , so I decided to ` do a good turn ' and digest that dinner at the same time , '' said he .