Mirabeau, wild with the joy of his deliverance, forgot all prudence and precaution. He took a town house and a country house; he bought books and pictures, carriages and horses, and gave dinner-parties at which six servants waited on his guests. After a few months he wanted money, and more was given without question. The Government proposed at last to buy him an annuity, with one-fourth of the capital which was to fall due at the dissolution; but the intention was not carried out. The entire sum that Mirabeau received, up to his death, from the king amounted to about £12,000. In return, between June 1 and February 16 he wrote fifty-one notes for the Court discussing the events of the day, and exposing by degrees vast schemes of policy. When they came to be known, half a century ago, they added immeasurably to his fame, and there are people who compare his precepts and prescriptions with the last ten years of Mazarin and the beginning of the Consulate, with the first six years of Metternich or the first eight of Bismarck, or, on a different plane, with the early administration of Chatham.

Mirabeau himself was proud of his new position, and relied on this correspondence to redeem his good name. He was paid to be of his own opinion. The king had gone over to him; he had changed nothing in his views to meet the wishes of the king. His purpose throughout had been the consolidation of representative monarchy on the ruins of absolutism. To the king in league with privilege he was implacably opposed. To the king divested of that complicity he was a convinced and ardent friend.

The opportunity of proving his faith was supplied by Captain Cook. In his last voyage the navigator visited the island since named after his lieutenant Vancouver, and sailed into Nootka Sound, to which, in his report, he drew the attention of the Government. Three or four years before, the Spaniards had been there, and had taken formal possession; and the Russians, spreading southward along the coast, acknowledged their right, and withdrew. But the place was far north of the regions they actually occupied; and English adventurers, with the sanction of the Government, settled there, and opened a trade in peltry with China. After a year or two, the Spaniards came in force, and carried them off, with their ships and their cargoes; and claiming the entire Pacific seaboard from Cape Horn to Alaska, they called on the English Ministers to punish their intruding countrymen. They also equipped a fleet of forty sail of the line, assuring the British chargé d'affaires that it was only to protect themselves against the Revolution. Pitt was not lulled by these assurances, or by the delivery of the confiscated ships. He had authorised the proceedings of the traders with the intention of resisting the Spanish claim beyond the limits of effective occupation. He now demanded reparation, and fitted out a fleet superior to that with which Nelson crushed the combined navies of France and Spain. Under the treaty of 1761 Spain demanded the support of France. If the French armed, as the Spaniards were arming, there was reason to hope that England, in so very dubious a question, would listen to terms; and if France refused to stand by a manifest engagement, Spain would be free to seek new friends. The Emperor sustained the appeal. It would be well for him if England was diverted from the concerns of Eastern Europe, and if France was occupied in the West. The French Ministers admitted their obligation and began to arm.

On May 14, just after the first negotiation between Mirabeau and the Court, the matter came before the Assembly. It was a common belief that war would strengthen the executive. The democratic leaders repudiated the Family Compact, and resented an alliance which was not national but dynastic and of the essence of those things which they were sweeping away. They sent pacific messages to the British embassy, and claimed for the representative assembly the right of pronouncing on peace and war.

Mirabeau, unlike many others, regarded a European war as a danger to the throne. But he was preparing for civil war, and meant to secure the army and navy on the royal side. He demanded for the king the exclusive right of declaring war and making peace. That is the principle under a constitution where the deputies make the Ministers. In France, Ministers were excluded from parliament and the principle did not apply. Barnave answered Mirabeau, and defeated him. On May 22, in the most powerful constitutional argument he ever delivered, Mirabeau insisted that, if the ultimate decision rested with the Assembly, it could act only on the proposition of the Crown. In legislation, the king had no initiative. Mirabeau established the royal initiative in peace and war. It was the first-fruit of the secret compact. The new ally had proved not only that he was capable and strong, but that he was faithful. For by asking more than he could obtain he had incurred, for the moment, a great loss of credit. The excess of his unwonted royalism made him an object of suspicion from that day. To recover the ground, he issued an amended version of his first speech; but others printed the two texts in parallel columns, and exposed the fraud. He had rendered an important service, and it was done at serious cost to himself. The event cemented the alliance, and secured his position with the king.

The Assembly voted a solemn declaration, that France would never make war for conquest, or against freedom. After that, Spain had little to hope for, and Pitt became defiant. Negotiations lasted till October. The Assembly appointed a Committee on Foreign Affairs, in which Mirabeau predominated, casting all his influence on the side of peace, and earning the gratitude and the gold of England. At last, the mutinous temper of the Brest fleet settled the question.

The great Bourbon alliance was dissolved, and Pitt owed a signal triumph to the revolutionary spirit and the moderating influence of Mirabeau. His defence of the prerogative deserved a reward, and he was received in a secret audience by Marie Antoinette. The interview took place at St. Cloud, July 3. The statesman did not trust his new friends, and he instructed the nephew who drove him, in disguise, to the back door, to fetch the police if he did not reappear in three-quarters of an hour. The conversation was satisfactory, and Mirabeau, as he kissed the queen's hand, declared with chivalrous fervour that the monarchy was saved. He spoke sincerely. The comedian and deceiver was not the wily and unscrupulous intriguer, but the inexperienced daughter of the Empress-queen. She never believed in his truth. When he continued to thunder against the Right, the king and queen shook their heads, and repeated that he was incorrigible. The last decision they came to in his lifetime was to reject his plans in favour of that which brought them to Varennes. But as the year wore on, they could not help seeing that the sophistical free-lance and giver of despised advice was the most prodigious individual force in the world, and that France had never seen his like. Everybody now perceived it, for his talent and resource increased rapidly, since he was steadied by a definite purpose, and a contract he could never afford to break. The hostile press knew of his visit to St. Cloud three days after it occurred, and pretended to know for how many millions he had sold himself. They were too reckless to obtain belief, but they were very near the truth; and the secret of his correspondence was known or guessed by at least twenty persons.

With this sword hanging over him, with this rope round his neck, in the autumn and winter of 1790, Mirabeau rose to an ascendancy in which he outweighed all parties. He began his notes by an attempt to undermine the two men who stood in his way. Lafayette was too strong for him. On the first anniversary of the Bastille he received an ovation. Forty thousand National Guards assembled from all parts of France for the feast of Federation. At an altar erected in the Champ de Mars, Talleyrand celebrated his last Mass, and France sanctioned the doings of Paris. The king was present, but all the demonstration was for the hero of two hemispheres, on his white charger. In November a new Ministry took office, composed of his partisans. Mirabeau attempted a coalition, but Lafayette did not feel the need of his friendship. He said, "I have resisted the king of England in his power, the king of France in his authority, the people in its rage; I am not going to yield to Mirabeau."

Necker was less tenacious of office, and rather than consent to an increased issue of assignats, resigned, much to his honour, and retired obscurely. Mirabeau triumphed. He had opposed the assignats at first, although Clavière defended them in his newspaper. He now changed his attitude. He not only affirmed that the Church lands would be adequate security for paper, making it equivalent to gold, but he was willing that the purchase money should be paid in assignats, doing away with bullion altogether. But the cloven hoof appeared when he assured the king that the plan which he defended would fail, and would involve France in ruin. He meant that it would ruin the Assembly, and would enable the king to dissolve. The same Machiavellian purpose guided him in Church questions. He was at heart a Liberal in matters of conscience, and thought toleration too weak a term for the rights inseparable from religion. But he wished the constitutional oath to be imposed with rigour, and that the priests should be encouraged to refuse it. He declined to give a pledge that the Assembly would not interfere with doctrine, and he prepared to raise the questions of celibacy and of divorce in order to aggravate the irritation. He proposed to restore authority by civil war; and the road to civil war was bankruptcy and persecution. Meantime, the court of inquiry vindicated him from aspersions connected with the attack on Versailles; as chairman of the Diplomatic Committee, he was the arbiter of foreign policy. Necker and all his colleagues save one had gone down before him; he was elected President of the Jacobins in November, and when he asked for leave of absence, the Assembly, on the motion of Barnave, requested him not to absent himself. Montmorin, the only member of Necker's Ministry who remained at his post, made overtures to him, and they came to an understanding. The most remarkable of all the notes to the king is the one that records their conversation. They agreed on a plan of united action. Mirabeau thereupon drew up the 47th note, which is a treatise of constitutional management and intrigue, and discloses his designs in their last phase but one, at Christmas 1790.

Mirabeau never swerved from the fundamental convictions of 1789, and he would have become a republican if Lewis had gone over to the reactionary émigrés. But he wished him to retire to some provincial town, that he might not be in the power of the Assembly, and might be able to disperse it, backed by the growing anger of the country. Meantime, opinion was to be worked and roused by every device. He set himself strenuously to form a central party out of the various groups of deputies. Montmorin was in friendly touch with some of them, and he had the command of money. Mirabeau laboured to gain over others. Late one night he had a long conference with Malouet, whom he dazzled, and who influenced a certain number of votes.