In the Skolian universe six thousand years ago a mysterious group of aliens took a group of humans and settled them on the world of Raylicon. The Ruby dynasty begins and spreads over hundreds or thousands of worlds. But because this was propped up on the alien technology spaceflight was lost. Several thousand years later spaceflight was rediscovered. A group of scientists started the Rhon project in order to use the ancient technology. An effort to create a more stable Rhon instead created the Aristos. The Aristos created the Eubian concord, a.k.a. Traders, and the Rhon create the Skolian empire. Later on Earth achieves interstellar flight, creates the Allied worlds. In Skyfall Roca, a Rhon psion, gets stuck on a backwater planet finds Eldrinson who happens also to be Rhon. They have 10 children, Ruby heirs, and now 23 years later they are a bunch of teenagers and young adults. Meanwhile the Traders have been busy over the last decades plotting to capture the Ruby psions which will destroy the Skolian ability to use Kyle space for instantaneous communication. The one advantage the Skolians have over the larger Trader fleet.
Seventeen year old Soz wants to go to Diesha Military Academy and become a Jagernaut. Her father's Lyshrioli values make him dead set against allowing his daughter to join the military. As it turns out Soz did extraordinarily well on her preliminary exams and not only is she accepted immediately she also gets to waive the parental consent. Eldrinson gets angry and disowns his daughter. At the same time he forbids Althor, who is a senior cadet at DMA, to return without a wife. 13 year old Shannon thinking he is somehow to blame for Althor's exile runs away from home seeking the Blue Dale Archers. Eldrinson follows Shannon and is captured by Vitarex Raziquon. How did an Aristo get on to Lyshriol one of the most protected planets in the Imperialate? There is an attack on Onyx station and a routine training mission for Blackstar squadron, including newly graduated Althor, becomes a battle with casualties.
More attacks by the traders directed at the Dyad, Kurj and the Ruby Pharaoh Dehya, threaten the stability of the psiberweb. When Kurj entered the Dyad twenty years earlier it killed Jarac. So any attempt for Roca or Soz to enter they Dyad would surely end in the death of someone.
All of the Skolian books have been excellent. No exception with these two. Some of the books have followed one character, here the story follows several -- Eldrinson, Soz, Shannon, Eldrin, Kurj, Roca, Althor, etc. -- keeping us interested in all.