Embers of Esper: An Epic Sci Fi Adventure by Tyler Aston

Tristan is on the verge of becoming a Warden.
It is one of the greatest honours the galaxy can bestow – not bad for a scrawny kid from Earth. With it comes a new life of responsibility, dedication and sacrifice.
But after a lifetime on the run, the rainbow-haired mercenary Kyra has a problem.
Her past, it seems, has finally caught up with her…
And innocent people are paying the price.
Her family are in danger. Her home planet is under attack. She is the only one who can make things right – but she can’t do it alone.
Join Tris and Kyra on a desperate mission to the furthest reaches of space. Together they must confront an enemy that has haunted Kyra’s dreams, and pursued her across the stars since she was a child.
But you can’t fight the past.
Or can you?