When they came out of the Mercer doctor's door William King's fresh face had gone white, but Miss Harriet walked smiling. At the foot of the steps the doctor paused and stood an instant leaning on the hand-rail, as though for support and to get his breath. Miss Harriet looked at him with concern. "Why, Willy!" she said. "Miss Harriet," William said, hoarsely, "he may be mistaken. It's perfectly possible that he is mistaken." "I guess not, Willy," she said, simply. "Come, now, don't be such a wet string." She struck him a friendly blow on the shoulder that made the doctor take a quick step forward to keep his balance; but it gave him the grip upon himself that for a single instant he had lost. "And, anyhow," he said, "even if he is right, it may not develop. I've known a case where it was checked for two years; and then the patient died of small-pox." "Pleasant alternative," said Miss Harriet; she was smiling, her face full of color, her shoulders back, her head up. "Come, Willy, let's have a spree. Here we are for a day, and Martha's at home. We'll have a good dinner, and we'll do something interesting. _Hurrah!_" said Harriet Hutchinson. And the doctor could do no less than fall into step at that martial note and march at her side proudly. And by some spiritual contagion his courage met hers like the clash of swords. They went to get their good dinner, and Miss Harriet ate it with appetite. Afterwards she declared they would go to the circus. "It's in town; I saw the tents. I haven't been to a circus for forty years," she said; "but I know just how the pink lemonade tastes. You've got to treat, Willy." "I'll throw in pea-nuts," said William King; and with that they left the restaurant and went sauntering along the hot, grimy street in the direction of the open lots beyond the blast-furnaces, where, under a deep June sky, dazzling even though it was smudged by coils of smoke, were stretched the circus tents, brave with flags and slapping and billowing in a joyous wind. William King held on to his hat and looked at the great, white clouds, domed and shining, piled all along the west. "We'll get a shower, I'm afraid, Miss Harriet."