Tomas's Trials, livre audio

Book 27: Heroes for Hire
Tomas is excited about this new direction in his life. Working for Levi allows him to use his vast array of skills in new and varied ways. He doesn’t expect to be sent undercover in a supremacy group, loaded with weapons. Yet what he finds is much more complicated than that.
Amber had joined the group to help get her friend away from the members, only to find out her friend is dead, and no one will talk about it. The group is in the middle of a coup from within, as the leader barely maintains control. It’s a dangerous place to be, but she is not leaving without answers. Needing help, she contacts an old friend. Tomas isn’t what she expects.
Still, as long as he will help her do what she needs to do—before she gets into further trouble—he is fine with her. Except it doesn’t take long for both of them to realize that the danger is escalating to the point where it is possible that neither of them will leave the compound—at least not alive.