Amos looked at first, when his father put the question, as though he would have sunk into the earth.  His colour came and went, and he half rose up, as though he would have left the table; but, after a moment's pause, he resumed his seat, and, turning quietly to Mr Huntingdon, said in a low, clear voice, "Walter saw me yesterday afternoon playing with some little children in a cottage-garden some miles from this house. This is all about it."