Grand Master’s Mate by Aurora Springer

Young empath, Violet Hunter, and the crafty Grand Master, Athanor Griffin, tackle the villains threatening civilization.
Their worst enemy rampages across the galaxy, while blocked portals prevent normal interplanetary commerce. Compounding their problems, half the Grand Masters on the Council vow to eliminate Violet. To restore peace, Violet and Athanor embark on a hazardous quest for a weapon hidden by the ancient psychic masters. But, the weapon proves elusive, dangers lurk in the ancient sites, and new alliances forged with bizarre entities may not suffice to thwart their foes and save the galaxy.