So Mr. Grierson is, in some sense anyway, found innocent of the charges. Is Linda's writing to him her way of relieving herself of Patra's accusation that Linda believed Paul was ill? She would like to be told she is innocent as well and knowing that feeling, does for Mr. Grierson what she would like to have done for herself?
His letter back, to me, had very different tone from hers - less personal and no connection really. Linda, who is still searching "out there" anywhere for guidance, direction, and now forgiveness, turns to Mr. Grierson, an adult who had once recognized her and selected her, out of all her classmates, to provide these for her. She has not learned yet that these must come from within to really matter. He, on the other hand, shows us his lack of character, by his reference in each letter of the amount written being dependent on space on each card. Again, perhaps I am not seeing the bigger picture. I would appreciate any enlightenment here.