"O Nan!" she said, smiling brightly at the other girls, as if to excuse herself for not including them in her familiarity, "won't you please go and see if you can't entertain that poor young Joe Tracy? I've done my best, but he won't come out of his shell for all I can do, and I think your hearty, breezy way is just what he needs. He looks so forlorn, tucked away 'all alone by himself,' as you would say." She patted the girl affectionately on the shoulder as she sent her on her way, saying heartily, as she passed out of ear-shot: "I always feel perfectly secure when I can fall back on Nan to help me out with shy, sensitive people. She has such a great, warm heart that it seems to thaw their stiffness right out of them." Louie threw her arm impulsively about the governess' waist: "You're such a dear!" she cried, demonstratively; "and I'm over and over obliged to you for letting me come here and get acquainted with Nan. I think she is ever so nice, and it's a shame that we haven't known each other before." Miss Blake gave the girl a hearty smile. "Better late than never," she returned gayly. Grace Ellis reddened and Mary Brewster tilted her chin superciliously, but they both turned their eyes suddenly in the direction of the other end of the room as Ruth Andrews grasped Miss Blake's arm, and whispered excitedly: "For goodness' sake, do look over there! Nan has got Joe Tracy laughing already." Sure enough, the lad's pale, sensitive face was all aglow, and, as he listened to what the girl was saying, his eyes brightened and his mouth danced up at the corners in a laugh of genuine appreciation. Nan was gesticulating in her own graphic fashion, and the girls could easily follow her by watching her expression and her vivid pantomime. Plainly she was describing the sleight-of-hand performance to her bashful friend, and Miss Blake could readily see that she was not sparing herself in the recital. She raised her hands to her head and pretended to take off her hat, which she made a show of reluctantly surrendering to some one who received it with a profound bow. Then she suddenly leaned forward, as if stumbling on something, and the next moment she held up her hand and seemed to be regarding some article upon it with an exaggeratedly doleful expression that was such an exact imitation of the renowned wizard's that Miss Blake recognized it at once, and laughed as heartily as Joe Tracy himself. By this time the girls were thoroughly interested, and kept their eyes fixed on Nan so that they might not lose one gesture nor the slightest change of expression. "O dear! Those Buckstone girls! Why do they get in my way," lamented Louie Hawes, "I wish they wouldn't crowd round her so. First thing they know she'll notice them, and stop short off and won't tell any more." "Hush, Lu! There go John Gardiner and Harley Morris!"