Later, the Fiddler was part of a trio of criminals that caused the original Flash to come out of retirement. The Fiddler, along with the Shade and the Thinker, were stopped by the first of many team-ups of Earth-One and Earth-Two heroes in the classic "Flash of Two Worlds" story from "The Flash" #123 (September 1961). Barry Allen, the Earth-1 Flash, visited Earth-2 accidentally and looked up his comic book hero, the original Flash. Together, the two Flashes stopped the villains, despite the Fiddler briefly placing them both under his control. This issue led to many other team-ups between Earth-1 and Earth-2 heroes and villains. The Fiddler, with the Wizard and the Icicle formed the "Crime Champions" who, with the Crime Champions of Earth-1 (Doctor Alchemy, Chronos, and Felix Faust), tried to commit robberies after the Fiddler accidentally discovered a way to travel across the vibratory barriers between the Earths during a jailbreak. This led to the first JLA/JSA team-up. The Fiddler, while committing a million-dollar robbery on Earth-2 escaped Hawkman, the Earth-2 Flash, and the Atom, though the Flashes from both Earths were captured and placed in vibratory spheres, as they might recognize the criminals due to their ability to travel between Earths. Eventually, the villains starting committing crimes on each other's worlds. Using the Wizard's Tibetan magic, the Earth-2 crooks impersonated the Earth-1 crooks, the Fiddler impersonating Felix Faust, and battling Aquaman, the Martian Manhunter, and the Atom. When the Fiddler tried to rob a Museum on Earth-1 in his true form, Hourman and the Earth-2 Atom stopped him. However, the heroes were imprisoned by the Crime Champions in cages in space, but the Green Lanterns helped them to escape and return to Earth, after which the crooks were defeated and jailed on their respective Earths.