SOLARR. Failed expansion book 1 (en Inglés) - Ben Stephenson

When betrayal cuts his plans of freedom short, Ex stands to gain more than what he has to lose by helping a mysterious and equally dangerous woman escape from the clutches of zealots. But even after throwing every caution aside, he can barely stay on this enigmatic stranger's trail. He must wonder, is he helping or holding her back?

In his twenty years, Ex has never let Mars beat him. Not after being cast out or when he watched a loved one die. Now, fighting against every force the dying planet has to offer, that same resolve drives him to chase this newcomer and find answers to questions he never thought to ask. It may not mean freedom from judgment or even survival, but it's a purpose. One that Ex will lay his life down to fulfill.