the winter in a tribal village in what is now eastern Iowa. The next spring he encountered James Tute and James Stanley Goddard, who had been sent to accompany Carver on his journey. They continued exploring and mapping along the upper Mississippi River through what is now Minnesota, and Wisconsin. The men headed for Grand Portage on Lake Superior, hoping that Rogers had sent supplies there for them. But instead they found a letter from him, chiding them for their expenditures and warning them to be more thrifty in the future. Unable to proceed without the badly needed supplies, they headed back to Fort Michilimackinac, arriving there on August 29, 1767. Carver learned that his sponsor, Royal Governor Robert Rogers, was under suspicion of plotting treason against England. On December 6, 1767, Rogers was arrested, charged with treason, placed in irons, and put in solitary confinement. While he had a cold, miserable winter in an unheated guardhouse, Carver probably used this time to prepare his journal of the expedition for publication. In the spring of 1768, Carver and Rogers took the first available ship to Detroit. Carver travelled in the relative comfort of a passenger cabin, while Rogers was forced to travel sitting on the ballast rocks in the hold of the ship. Rogers was taken to Montreal to be court-martialed. Although he was acquitted of the charges, he did not return to his position as Royal Governor. Carver submitted a list of expenses to his superiors, but payment was denied on the grounds that Rogers had not had sufficient authority to order such an expedition. Carver was outraged. He believed that he had been legitimately hired by the Crown to map and explore the newly acquired territory. He believed that he had possibly identified a Northwest Passage. He had spent two years working and was left with little to show for it but debt, maps and log books. No one seemed interested. In 1769 Carver left for England to petition the government for his promised payment and to claim the reward for identifying a potential Northwest Passage. He left his wife Abigail in the colonies and never saw her again. He spent the remainder of his life petitioning the [English] government for his payments. He ultimately received two separate grants from the Crown to cover his expenses, although not the great reward for identifying a Northwest Passage. While working