It was a person of conspicuous appearance, both by reason of his great height and leanness as well as his extreme age, who now descended the straight stairway leading from the corridor above. At Court they would have told you that the Prince de Gâtinais was a trifle insane, but he troubled the Court very little, since he had spent the last twenty years, with brief intermissions, at his château near Beaujolais, where, as rumor buzzed it, he had fitted out a laboratory, and had devoted his old age to the study of chemistry. "Between my flute and my retorts, my bees and my chocolate-creams," the Prince was wont to say, "I manage to console myself for the humiliating fact that even Death has forgotten my existence." For he had a child's appetite for sweets, and was at this time past eighty, though still well-nigh as active as Antoine de Soyecourt had ever been, even when—a good half-century ago—he had served, with distinction under Louis Quatorze.  
To-night the Prince de Gâtinais was all in steel-gray, of a metallic lustre, with prodigiously fine ruffles at his throat and wrists. You would have found something spectral in the tall, gaunt old man, for his periwig was heavily powdered, and his deep-wrinkled countenance was of an absolute white, save for the thin, faintly bluish lips and the inklike glitter of his narrowing eyes, as he now regarded the couple waiting hand in hand before him, like children detected in mischief.
 
Little Louis Quillan had drawn an audible breath at first sight of the newcomer. Monsieur Quillan did not speak, however, but merely waited.
 
"You have fattened," the Prince de Gâtinais said, at last, "I wish I could fatten. It is incredible that a man who eats pounds of sugar daily should yet remain a skeleton." His voice was guttural, and a peculiar slur ran through his speech, caused by the loss of his upper front teeth at Ramillies.
 
Louis Quillan came of a stock not lightly abashed. "I have fattened on a new diet, monsie............