Nävis has a son, Yanno, raised by his worst enemy, Consul Atsukau. Still under the shock of the news, she has to face an unprecedented danger: in the grip of a powerful psychic force, the entire population of Sillage is plunged into catalepsy. Insensitive to mental powers, Nävis and her son are the only two to be able to save the convoy from a fatal diversion to a black hole.