The station has severed its ties with Earth and has been quarantined in retaliation.
In the depths of hyperspace a squad of starfuries makes an astounding discovery that could affect the destiny of the civilised universe. But is it a threshold to a new age or a gateway to hell?
Captain Sheridan and archaeologist Elizabeth Trent know they have found a gold mine when they recover a gargantuan alien artifact floating derelict in space. But the telepath Lyta is the first to sense the danger when her mind is assaulted by swift, crippling images of unspeakable terror. And as research teams attempt to penetrate the mysteries of the mammoth machine, Babylon 5 is thrust toward a terrifying confrontation with the monstrous dimension of Thirdspace . . .
