The first Silver Age appearance of Golden Age Flash and the first mention of an Earth-2 where Golden Age heroes live! Barry Allen appears at the Community Center in Central City to perform for kids, and during one of his amazing tricks is mysteriously transported to Keystone City, a place that he recalls that the original Flash once lived. Prepare for the meeting of the Flash of two worlds!
Written By:Gardner Fox
Cover By:Carmine Infantino, Murphy Anderson