Fatal error! The sending of that dispatch was to give Wilkinson his opportunity to save himself by assuming the disguise of patriotism and of fealty to Jefferson, and, clad in these habiliments, to denounce his associates in the Mexican adventure as traitors to America. Soon, very soon, Wilkinson was to use Burr's letter in a fashion to bring his friend and many honest men to the very edge of execution--a fate from which only the fearlessness and penetrating mind of John Marshall was to save them.
But this black future Burr could not foresee. Certain, as were most men, that war with Spain could not be delayed much longer, and knowing that Wilkinson could precipitate it at any moment, Burr's mind was at rest. At the beginning of August, 1806, he once more journeyed down the Ohio. On the way he stopped at a settlement on the Monongahela, not far from Pittsburgh, where he visited one Colonel George Morgan. This man afterward declared that Burr talked mysteriously--the Administration was contemptible, two hundred men could drive the Government into the Potomac, five hundred could take New York; and, Burr added laughingly, even the Western States could be detached from the Union. Most of this was said "in the presence of a considerable company."[840]
The elder Morgan, who was aged and garrulous,[841] pieced together his inferences from Burr's meaning looks, jocular innuendoes, and mysterious statements,[842] and detected a purpose to divide the Nation. Deeply moved, he laid his deductions before the Chief Justice of Pennsylvania and two other gentlemen from Pittsburgh, a town close at hand; and a letter was written to Jefferson, advising him of the threatened danger.[843]
From Pittsburgh, Burr for the second time landed on the island of Harman Blennerhassett, who was eager for any adventure that would restore his declining fortunes. If war with Spain should, after all, not come to pass, Burr's other plan was the purchase of the enormous Bastrop land grant on the Washita River. Blennerhassett avidly seized upon both projects.[844] From that moment forward, the settlement of this rich and extensive domain in the then untouched and almost unexplored West became the alternative purpose of Aaron Burr in case the desire of his heart, the seizure of Mexico, should fail.[845]