"Here's a letter for you, Doctor Mack," said the housekeeper, as she entered the plain room used as a library and sitting-room by her employer, Doctor Ezekiel Mack. "It's from Walter, I surmise." This was a favorite word with Miss Nancy Sprague, who, though a housekeeper, prided herself on having been a schoolmistress in her earlier days. "Indeed, Nancy. Let me see it. Walter is really getting attentive. His last letter came to hand only two days since. He hasn't forgotten his old guardian." "Oh, no, sir. He'll never do that. He has a predilection for his old home. His heart is in the right place."