In the ostracization of the Nanites (STAR-DUST 4)

Sigurd Westall and the organic ship Paurusheya, which presents itself as the material hologram Alethea in human form, share more than just friendship. Together, they face new dangers. When Life-Int-Ltd. is infiltrated by aliens, he quits and, together with his former boss Sir Arthur Newcraft, founds the MBF organization based on Saturn's moon Japetus. Joining him are his old colleagues Mark Merlin, Selin Wiegand and Amanda Lerch. The organization is supposed to monitor and control extraterrestrial activity within the solar system. When Sigurd visits the Venus base TRISHARANA, the first confrontation occurs. Two huge alien ships appear near the Pluto orbit.