Walter Kennelworth was graduated from Columbia College in June and prepared to work with Robert in the office. Edna Quinton had proved to be a faithful employee and a valuable aid to Robert. She had taken care of his business and looked after his financial transactions while he was away. Robert soon went to work on a new invention, and perfected a machine to read the minds of people a short distance away and also a machine which he named the "Tel-talk." This machine was made on the principle of the radio; by raising and lowering it at certain angles it would record all the conferences in the different buildings in Wall Street. Robert also used this machine to get reports on all the conferences of the big manipulators. He knew that manipulators in Wall Street suspected that in some way he understood their plans as he was making money too fast and they were conspiring to find a way to get him wrong on the market and break him. They changed their plans often but found that each time Robert was on the right side of the market. Even his friend Walter knew nothing about Robert's latest invention. He kept it in a secret room, and no one had ever seen it but himself. It was a very delicate little machine with indicators like a compass, delicately balanced and operated by electricity. His success was causing great excitement and schemers wanted to get his secret. They knew that Edna Quinton had been in his office ever since he was in New York. She was invited to a dinner at the Biltmore where she was offered a large sum of money if she would reveal the secrets of how Robert Gordon so successfully operated in the market. She told them frankly that she knew nothing about how he did it, but if she did know, no amount of money would induce her to turn traitor to her employer. Edna made up her mind that when she reached the office the following morning, she would tell Mr. Gordon just what had happened. Upon reaching the office unusually early she found Mr. Gordon there. He seemed unusually happy and she thought that he must have news of Marie. Before she had time to tell him what had happened the night before, he called her into his secret office, the room that she had never seen before. There she saw all kinds of strange instruments which she knew must be some of his new inventions. He took her to a little machine in the corner of the room and showed her some peculiar lines that the machine had recorded on the paper the night before. He told her that his machine received the impressions of people's minds and recorded their thoughts, especially when they were greatly excited or interested in any matter. He read to her from the record on the machine in substance exactly what had been said to her the night before. Then he turned to the Bible and showed her where it said "Everything that is concealed will be revealed, and everything that is covered will be uncovered." Edna was more excited than she had ever been in her life.