Adventure Comics #367

In "No Escape from the Circle of Death!", the Legion of Super-Heroes gathers at their newly rebuilt clubhouse—still bearing the scars of the Dark Five's attack—when a mysterious device arrives in a strange package. As the team examines it, a hidden threat emerges: the Death Circle is preparing to strike Earth, which lies defenseless with two of the three keys to its planetary shield still held by their enemies.

In "Victims of the Sinister Circle!", the Dark Circle's assault on Japan reaches a grim peak—until Brainiac 5, armed with the mysterious Miracle Machine gifted by a Controller, unleashes a desperate counterstrike that turns the tide. With the fate of a nation hanging in the balance, one genius scientist must rely on an unknown power to fight back against overwhelming odds.