332 THE SECRET GARDEN
ercises for making the muscles stand out like lumps. 'Robins are not like human beings; their muscles are always exercised from the first and so they develop themselves in a natural manner. If you have to fly about to find every meal you eat, your muscles do not become atrophied (atrophied means wasted away through want of use).
When the boy was walking and running about and digging and weeding like the others, the nest in the corner was brooded over by a great peace and content. Fears for the Eggs became things of the past. Knowing that your Eggs were as safe as if they were locked in a bank vault and the fact that you could watch so many curious things going on made setting a most entertaining occupation. On wet days the Eggs' mother sometimes felt even a little dull because the children did not come into the garden.
But even on wet days it could not be said that Mary and Colin were dull. One morning when the rain streamed down unceasingly and Colin was beginning to feel a little restive, as he was obliged to remain on his sofa because it was not safe to get up and walk about, Mary had an inspiration.
" Now that I am a real boy," Colin had said, " my legs and arms and all my body are so full of Magic that I can't keep, them still. They want to be doing things all the time. Do you