twelve o'clock
`` It 's going to be a big , big picnic , '' said Frank , and the girls began to laugh . `` We 're going to have lots of fun . '' Frank and Tom could climb like monkeys , and in about an hour 's time they had put all the food high up in a hole in the rock out of the reach of bears or foxes . By twelve o'clock , when the sun was as high as it could get , the snow had disappeared , and once more there was a soft , warm breeze blowing , and beauty everywhere . Two days flew by and nothing happened , only at night they could hear foxes barking in the distance . They never attack people singly , as bears do , but they are dangerous in packs , as Tom one day found out to his cost . The food was getting low , and Tom thought it was time to do something .