Faust drinks a pledge to the vision, which fades away. In a twinkling the life-weary sage is transformed into a young man, full of eager and impatient strength. Méphistophélès loses no time in launching Faust upon his career of adventures. First, he leads him to a fair in a mediaeval town. Students are there who sing the pleasures of drinking; soldiers, too, bent on conquest--of maidens or fortresses, all's one to them; old burghers, who find delight in creature comforts; maids and matrons, flirtatious and envious. All join in the merriest of musical hubbubs. Valentin, a soldier who is about to go to the wars, commends his sister Marguerite to the care of Siebel, a gentle youth who loves her. Wagner, a student, begins a song, but is interrupted by Méphistophélès, who has entered the circle of merry-makers with Faust, and who now volunteers to sing a better song than the one just begun. He sings of the Calf of Gold ("Le veau d'or est toujours debout"), and the crowd delightedly shouts the refrain. The singer accepts a cup of wine, but, finding it not at all to his taste, he causes vintages to the taste of every one to flow from the cask which serves as a tavern sign. He offers the company a toast, "To Marguerite!" and when Valentin attempts to resent the insult to his sister with his sword, it breaks in his hand as he tries to penetrate a magic circle which Méphistophélès draws around himself. The men now suspect the true character of their singular visitor, and turn the cruciform hilts of their swords against him, to his intense discomfort. With the return of the women the merrymaking is resumed. All join in a dance, tripping it gayly to one waltz sung by the spectators and another which rises simultaneously from the instruments. Marguerite crosses the market-place on her way home from church. Faust offers her his arm, but she declines his escort--not quite so rudely as Goethe's Gretchen does in the corresponding situation. Faust becomes more than ever enamoured of the maiden, whom he had seen in the vision conjured up in the philosopher's study.