It was a pleasant June afternoon that Miss Milly Arnot, principal of the primary department of one of the public schools of San Francisco, having evaded her companions, resolved to put into operation a plan which had lately sprung up in her courageous and mischief-loving fancy. With that wonderful and mysterious instinct of her sex, from whom no secrets of the affections are hid, and to whom all hearts are laid open, she had heard the story of Hawkins's folly, and the existence of the “Idiot Asylum.” Alone, on Hawkins Hill, she had determined to penetrate its seclusion. Skirting the underbrush at the foot of the hill, she managed to keep the heaviest timber between herself and the “Blazing Star” tunnel at its base, as well as the cabin of Hawkins, half-way up the ascent, until, by a circuitous route, at last she reached, unobserved, the summit. Before her rose, silent, darkened, and motionless, the object of her search. Here her courage failed her, with all the characteristic inconsequence of her sex. A sudden fear of all the dangers she had safely passed--bears, tarantulas, drunken men, and lizards--came upon her. For a moment, as she afterward expressed it, “she thought she should die.” With this belief, probably, she gathered three large stones, which she could hardly lift, for the purpose of throwing a great distance; put two hair-pins in her mouth; and carefully re-adjusted with both hands two stray braids of her lovely blue-black mane, which had fallen in gathering the stones. Then she felt in the pockets of her linen duster for her card-case, handkerchief, pocketbook, and smelling-bottle, and, finding them intact, suddenly assumed an air of easy, ladylike unconcern, went up the steps of the veranda, and demurely pulled the front doorbell, which she knew would not be answered. After a decent pause, she walked around the encompassing veranda, examining the closed shutters of the French windows until she found one that yielded to her touch. Here she paused again to adjust her coquettish hat by the mirror-like surface of the long sash-window, that reflected the full length of her pretty figure. And then she opened the window, and entered the room.