By early July he was back in Philadelphia , where he wrote another secret message to Clinton on 7 July which implied that his appointment to West Point was assured and that he might even provide a `` drawing of the works ... by which you might take ( West Point ) without loss '' . By early July he was back in Philadelphia , where he wrote another secret message to Clinton on July 7 , which implied that his appointment to West Point was assured and that he might even provide a `` drawing of the works ... by which you might take ( West Point ) without loss '' .