A Demesne Rises — Sandra Elsa

Tess and Nicholas learn what it takes to bring the Invisible knights together and make them as complete as they can be. At the same time they have problems coming at them from all angles. A conniving queen with an undetermined goal. Nicholas' brother and steed, near dead in the fairy demesne. An enemy involving humans in her goal of crashing the southern border, And young knights who literally need to be bailed out of their troubles.