‘_You_ are in the furnace, my precious sister,--a hotter furnace, perhaps, than that which tries your child. I need not repeat that whenever you want me, you have only to send for me. You and I understand each other! How sweet is the tie between us! Dear Mother is apt to indulge hopes of your boy’s recovery. I think that she hardly realises his state, and probably she scarcely knows how to write under the circumstances. She has had a cold these last few days, but is, I hope, throwing it off....