To her he was the duck instead of the chicken she thought she was hatching out.

One day he climbed to the roof of the barn.

His sister followed him.

The two were slowly, and in perfect security, "inching" along on the comb of the roof, when the mother happened to catch sight of them.

With a scream of half terror and half anger, she shouted to them to come down _at once!_ Up to that moment, I had watched both children with comfort, pleasure, and assurance of their perfect safety.