The aliens are Adjudicators, an ancient race whose ethos is to judge other species and reduce their survivors to a stone age existence.Tolvern sends a desperate message back to headquarters and retreats with her damaged ship to friendly systems. By the time she returns, the aliens have already invaded Alliance territory with a powerful fleet of star fortresses and accompanying dragoon ships, trapping and laying siege to the allied fleet.While repairing her ship, Tolvern cobbles together a squadron of damaged allied warships, former raiders, and the local survivors of an Adjudicator attack to drive off the alien fleet.The following books are included in this set:Alliance StarsAlliance ArmadaAlliance Insurgent