Hippy went back for another load of wood, his shoulders jogging up and down with laughter.
"This is all very fine, Tom, but what are we going to do after you have left us?" wondered Anne.
"Grace knows how to build a lean-to, and I am positive that Mrs. Shafto does," answered Tom.
"When you go into permanent camp you will require a different construction to keep the rain out. Bark stripped from trees will answer the purpose," Tom informed them.
The small lean-to was for the guide, and another of about the same size was later erected for Tom and Hippy, though further from the fire than the little green houses for the girls and the guide.
Night was upon them by the time they had finished, and Mrs. Shafto already had built a small cook fire and was preparing supper. About the time it was ready Tom put a match under the larger pile of wood, and a cheerful blaze flamed up.
"Try the house and see how warm it is, girls," suggested Grace.
Exclamations of delight and gurgles of satisfaction followed their trial of the lean-to.
"Why, it is as warm as a steam-heated house," cried Nora.