Roche Limit (The Sector Wars, Book Three)

It's the last hoorah for the Harpy, but things are looking pretty grim.
With near to a thousand sleek-looking alien battleships massing beyond the Belt, Kael and the crew have a fight on their hands.
But when an opportunity presents itself for an infiltration of the alien space station producing the drones bombing Zenthian planets, Kael dons his Deep Space Operative hat again and does what he does best.
Blowing things up with a little help from his friends.
Outgunned and outnumbered, facing two wars on two different fronts, and a courting process that includes a fight to the death; you'd think Kael would have enough to worry about. But there's something else. Zenthia's past is coming back to haunt it, and their ghosts aren't opposed to using whatever they need to achieve their objectives - including New Earth.
Either Kael and his crew come up with a miracle to stop one war and win the other. Or all is lost. No one ever said life in the stars would be easy, but does it have to be this hard?