Voltaire brought the frost. He got into a disreputable quarrel with a Jew, and meddled in other affairs, until something very like a quarrel arose between him and Frederick. The king wrote him a severe letter of reprimand. The poet apologized. But immediately afterwards his irrepressible spirit of mischief broke out in a new place. It was his ill-humor with Maupertuis which now led him astray. He wrote a pamphlet, full of wit and as full of bitterness, called "La diatribe du docteur Akakia," so evidently satirizing Maupertuis that the king grew furious. It was printed anonymously, and circulated surreptitiously in Berlin, but a copy soon fell into Frederick's hand, who knew at once that but one man in the kingdom was capable of such a production. He wrote so severely to Voltaire that the malicious satirist was frightened and gave up the whole edition of the pamphlet, which was burnt before his eyes in the king's own closet, though Frederick could not help laughing at its wit. But Voltaire's daring was equal to a greater defiance than Frederick imagined. Despite the work of the flames, a copy of the diatribe found its way to Paris, was printed there, and copies of it made their way back to Prussia by mail. Everybody was reading it, everybody laughing, people fought for copies of the satire, which spread over Europe. The king, enraged by this treacherous disobedience, as he deemed it, retorted on Voltaire by having the pamphlet burned in the Place d'Armes. This brought matters to a crisis. The next day Voltaire sent his commissions and orders back to Frederick; the next, Frederick returned them to him. He was bent on leaving Prussia at once, but wished to do it without a quarrel with the king. "I sent the Solomon of the North," he wrote to Madame Denis, "for his present, the cap and bells he gave me, with which you reproached me so much. I wrote him a very respectful letter, for I asked him for leave to go. What do you think he did? He sent me his great factotum, Federshoff, who brought me back my toys; he wrote me a letter saying that he would rather have me to live with than Maupertuis. What is quite certain is that I would rather not live with either the one or the other." In truth, Frederick could not bear to lose Voltaire. Vexed as he was with him, he was averse to giving up that charming conversation from which he had derived so much enjoyment. Voltaire wanted to get away; Frederick pressed him to stay. There was protestation, warmth, coolness, a gradual breaking of links, letters from France urging the poet to return, communications from Frederick wishing him to remain, and a growing attraction from Paris drawing its flown son back to that centre of the universe for a true Frenchman. At length Frederick yielded; Voltaire might go. The poet approached him while reviewing his troops. "Ah! Monsieur Voltaire," said the king, "so you really intend to go away?"