British Isles via the Grand Banks. The cruise lasted three months, and he netted 18 prizes before returning to New York on 24 October. During his many exploits on the trip, Boyle had the bravado to proclaim a blockade on the entire United Kingdom. His proclamation was posted in Lloyd's Coffee House in London: <blockquote>PROCLAMATION: Whereas, It has become customary with the admirals of Great Britain, commanding small forces on the coast of the United States, particularly with Sir John Borlaise Warren and Sir Alexander Cochrane, to declare all the coast of the said United States in a state of strict and rigorous blockade without possessing the power to justify such a declaration or stationing an adequate force to maintain said blockade; I do therefore, by virtue of the power and authority in me vested (possessing sufficient force), declare all the ports, harbors, bays, creeks, rivers, inlets, outlets, islands, and seacoast of the United Kingdom of Great Britain and Ireland in a state of strict and rigorous blockade. And I do further declare that I consider the force under my command adequate to maintain strictly, rigorously, and effectually the said blockade. And I do hereby require the respective officers, whether captains, commanders, or commanding officers, under my command, employed or to be employed, on the coasts of England, Ireland, and Scotland, to pay strict attention to the execution of this my proclamation. And I do hereby caution and forbid the ships and vessels of all and every nation in amity and peace with the United States from entering or attempting to enter, or from coming or attempting to come out of, any of the said ports, harbors, bays, creeks, rivers, inlets, outlets, islands, or seacoast under any pretense whatsoever. And that no person may plead ignorance of this, my proclamation, I have ordered the same to be made public in England. Given under my hand on board the Chasseur. THOMAS BOYLE By command of the commanding officer. J. J. STANBURY, Secretary.</blockquote>British merchants were alarmed, shipping and insurance rates soared and the Royal Navy diverted 14 sloops of war and three frigates to patrol the northern and western coasts of England. Upon her return to Baltimore Chasseur was hailed as "The Pride of Baltimore." Boyle spent the next two months preparing for his fifth and final privateering voyage. On 24 December, Chasseur put to sea and shaped a course for the