Justice League of America (Finest), book 3: The Bridge Between Earths
Gardner F. Fox, Dennis O'Neil, Mike Sekowsky et Dick Dillin2024

People on Earth-One and Earth-Two are being transported between the two worlds at random! Who, or what, is the mysterious force causing ordinary citizens, heroes, and villains to be displaced from their home worlds...and can it be stopped? This is one of the many mysteries and challenges that await the Justice League of America!
(Collects Justice League of America #45–72)