His stay in London lasted nearly three months. Towards the end of July an English frigate took him to the fleet where Admiral Saumarez received him with great deference, and equipped a brig with fourteen cannon to convey him to the shore. When, at night, they were within a gunshot of the coast of Saint-Honorine, d'Ache himself made the signals agreed upon, which were quickly answered by the coast guard on shore. An hour afterwards David the Intrepid's boat hailed the English brig, and before daybreak d'Ache was back at Mandeville, sharing with his hosts the joy he felt at the success of his voyage. They began to make plans immediately. It was decided on the spot that the Chateau de Monfiquet should shelter the King during the first few days after he landed. Eight months were to elapse before the beginning of the campaign, and as money was not lacking this time was sufficient for d'Ache to prepare for operations. We may as well mention at once that the English Cabinet, while playing on the fanaticism of d'Ache, as they had formerly done on that of Georges Cadoudal and so many others, had not the slightest intention of keeping their promises. Their hatred of Napoleon suggested to them the infamous idea of exciting the naive royalists of France by raising hopes they never meant to satisfy. They abandoned them once they saw their dupes so deeply implicated that there was no drawing back, caring little if they helped them to the scaffold, desirous only of maintaining agitations in France and of driving them into such desperate straits that some assassin might arise from among them who would rid the world of Bonaparte. Here lies, doubtless, one of the reasons why the exiled princes so obstinately refused to encourage their partisans' attempts. Did they know of the snares laid for these unhappy creatures? Did they not dare to put them on their guard for fear of offending the English government? Was this the rent they paid for Hartwell? The history of the intrigues which played around the claimant to the throne is full of mystery. Those who were mixed up in them, such as Fauche-Bonel or Hyde de Neuville were ruined, and it required the daylight of the Restoration to open the eyes of the persons most interested to the fact that certain professions of devotion had been treacherous. As far as d'Ache was concerned it seems fairly certain that he did not receive any promise from the princes, and was not even admitted to their presence; the English ministers alone encouraged him to embark on this extraordinary adventure, in which they were fully determined to let him ruin himself. Therefore the "unlimited" credit opened at the banker Nourry's was only a bait: while making the conspirators think they would never want for money, the credit was limited beforehand to 30,000 francs, a piece of duplicity which enraged even the detectives who, later on, discovered it.