four o'clock
Ping , put some grub in my pack , then I 'm off . '' After the guide 's departure time dragged rather heavily for the girls . Later in the day Grace took her pony out for a gallop and felt better for the change . At four o'clock Mr. Lang came in , and , though he had been up all night and had been hiking in the mountains all day long since early morning , he appeared fresh and alert . `` Pack up and get out ! '' he ordered , nodding to Ping Wing . `` Serve the grub on our mess kits first .