Atlas Shrugged part 2

Who is this man that visited Hammon the night before he disappeared? According to his sister, a stranger came to the house in the evening and he and Hammon stayed in his study talking late into the night. I think it is the John Galt himself come to take him and all the other highly successful and daring businessmen to Atlantis. Men like Ellis Wyatt, Nielson, and Hammon. I've still got a ways to go....