All day Thursday Dr. Willett rested as if recuperating from something past or nerving himself for something to come. In the evening he wrote a note to Mr. Ward, which was delivered the next morning and which caused the half-dazed parent to ponder long and deeply. Mr. Ward had not been able to go down to business since the shock of Monday with its baffling reports and its sinister “purgation,” but he found something calming about the doctor’s letter in spite of the despair it seemed to promise and the fresh mysteries it seemed to evoke.