IN WHICH THE FOOTPRINTS ARE LOST FOR EVER. A fervid May sun had been baking the adobe walls of the Presidio of San Ramon, firing the red tiles, scorching the black courtyard, and driving the mules and vaqueros of a train that had just arrived into the shade of the long galleries of the quadrangle, when the _Comandante_, who was taking his noonday _siesta_ in a low, studded chamber beside the guard-room, was gently awakened by his secretary. For thirty years the noonday slumbers of the Commander had never been broken; his first thought was the heathen!--his first impulse to reach for his trusty Toledo. But, as it so happened, the cook had borrowed it that morning to rake _tortillas_ from the Presidio oven, and Don Juan Salvatierra contented himself with sternly demanding the reason for this unwonted intrusion. "A señorita--an American--desires an immediate audience." Don Juan removed the black silk handkerchief which he had tied round his grizzled brows, and sat up. Before he could assume a more formal attitude, the door was timidly opened, and a young girl entered. For all the disfigurement of scant, coarse, ill-fitting clothing, or the hollowness of her sweet eyes, and even the tears that dimmed their long lashes; for all the sorrow that had pinched her young cheek and straightened the corners of her childlike mouth, she was still so fair, so frank, so youthful, so innocent and helpless, that the _Comandante_ stood erect, and then bent forward in a salutation that almost swept the floor. Apparently the prepossession was mutual. The young girl took a quick survey of the gaunt but gentlemanlike figure before her, cast a rapid glance at the serious but kindly eyes that shone above the Commander's iron-grey mustachios, dropped her hesitating, timid manner, and, with an impulsive gesture and a little cry, ran forward and fell upon her knees at his feet. The Commander would have raised her gently, but she restrained his hand. "No, no, listen! I am only a poor, poor girl, without friends or home. A month ago, I left my family starving in the mountains, and came away to get them help. My brother came with me. God was good to us, Señor, and after a weary tramp of many days we found a trapper's hut, and food and shelter. Philip, my brother, went back alone to succour them. He has not returned. Oh, sir, he may be dead; they all may be dead--God only knows! It is three weeks ago since he left me; three weeks! It is a long time to be alone, Señor, a stranger in a strange land. The trapper was kind, and sent me here to you for assistance. You will help me? I know you will. You will find them, my friends, my little sister, my brother!"