The Third Level Summary:
Charley, the main character of the story finds a portal which leads to 1894. He tries to go to his hometown, Galesburg. But, as because he didn’t have any currency of 1894, he had to postpone his plans for the future. He exchanged his three hundred dollar bills for less than two hundred dollars of that of 1894’s currency.

However, he never finds the third level again. When he tells this to his wife and his psychiatrist friend about this, both think that alike philately, this is also another way to take refuge from the realities of the world. However, the proof of the third level’s existence comes from the most unexpected source, his psychiatrist friend Sam.

Sam sends Charley a letter telling him about the third level. When Sam heads over to 1894 through the third level, he sends a first-day cover to his grandfather’s address. His grandfather thinking that the first-day cover was sent to him by himself, adds it to his collection of stamps and never opens it thinking that there is nothing in that envelope but blank paper. In the story, you will find a line ‘…he started my collection’. It means that Charley’s grandfather had a collection of stamps along with first-day covers which was passed over to Charley.

When Charley was looking at his collection, he found the letter which Sam had written to him and that letter gave solid proof of the third level’s existence. You might be confused by the last part of the story, but it’s really simple you see … the concept is something like something you do in the past which has direct effect on the present. Charley received the letter because Sam wrote it to him in 1894. Charley didn’t exist in 1894 because in 1894, he wasn’t born.

So, Sam had to think and write a letter to Charley’s grandfather who’s hobby was to collect stamps like Charley and Sam knew that if somehow he could make his grandfather into adding the letter to his collection, then it would straight away go off to Charley as Charley’s collection was started by Charley’s grandfather. So, I think it’s clear that Charley got that letter only when Sam sent it to him. He didn’t receive it until Sam actually went to 1894 and wrote a letter to Charley’s grandfather. It’s like this… something someone does in the past which has a direct (in this case immediate) effect on the present you are living in.