After the events on Antares, the first official contact between Humans and the Tsalterian civilisation can take place on Aldebaran. Limited in scope, it is to involve only two groups of scientists studying a mysterious structure of unknown origin – all under the aegis of Kim, the only ambassador the aliens are willing to accept. A situation that’s not to everyone’s taste on the Human side … But as things threaten to take a wrong turn, Marie, one of the survivors brought to Aldebaran by Sven the Tsalterian, suddenly intervenes ……

Kim’s team has travelled through the quantum gate inside the mysterious cube, and begun exploring the planet on the other side, but soon the expedition loses a member: Marie vanishes, abducted by an unknown human. Her teammates will do anything in their power to find her, but they lack resources, and Kim returns to Aldebaran to obtain some. Unfortunately, the political situation on her home planet is quickly deteriorating, and the terrorists are still bent on harming her and her work.

The mysterious cube on Aldebaran was destroyed by a terrorist, along with the quantum gate that allowed passage to a new world – stranding Kim and her team on the other side. At least, they did manage to find – and befriend - the intruder who’d kidnapped Marie. Meeting his people, Kim discovers that the planet has recently begun being plagued by strange phenomena. What is the young woman going to find out – and what sort of impact will it have on Humanity’s future?