"The house in which Arnold was living at that time had been the property of Colonel Robinson, but was confiscated because he had become a Tory. The two had been corresponding for some time under the pretence that Robinson was trying to recover the property through Arnold. Sir Henry Clinton had sent Robinson up the river on board the _Vulture_ with orders to proceed as high as Teller's Point. It is probable that Robinson knew all about Arnold's treasonable plans and purposes. He now wrote a letter to General Putnam asking for an interview with him on the subject of his property, and, pretending that he did not know where Putnam was, he enclosed his letter to him in one addressed to Arnold, requesting him to hand the enclosed to Putnam, or, if that officer had gone away, to return it by the bearer, adding 'In case General Putnam should be absent, I am persuaded, from the humane and generous character you bear, that you will grant me the favor asked.' "The _Vulture_ was then lying six miles below Verplanck's Point, and the letters were sent to the Point under a flag of truce. Arnold went down to that point some hours before Washington was to arrive there on his way to Hartford, and received and read Colonel Robinson's letter. Arnold took Washington and his suite across the river in his barge and accompanied them to Peekskill. He laid Robinson's letter before Washington and asked his advice. Washington replied that the civil authority alone could act in the matter, and he did not approve of a personal interview with Robinson. Arnold's frankness in all this effectually prevented any suspicion of his integrity as commandant of West Point. "After receiving Washington's opinion in regard to the matter Arnold dared not meet Robinson; but he wrote to him, and in that letter told him that on the night of the 20th he should send a person on board of the _Vulture_ who would be furnished with a boat and a flag of truce, and in the postscript he added, 'I expect General Washington to lodge here on Sunday next, and I will lay before him any matter you may wish to communicate.' It was an ingenious and safe way of informing the enemy just when the commander-in-chief would return from Hartford." "That looked as though he wanted to put Washington in peril," said Lucilla. "I think it did," said her father. "That letter was sent to Sir Henry Clinton, and the next morning Andre went to Dobbs Ferry. Clinton had given him positive instructions not to change his dress, not to go into the American lines, not to receive papers, or in any other way act the character of a spy. "It was expected that Arnold would visit the _Vulture_ and there hold his interview with Andre. But Arnold had arranged a plan which would be safer for himself, though a greater risk for Andre.