Divide by Two. The Divide, #3

Sequel to Divided WithinIn a universe fractured by political corruption, experimental technology, and alien life forms, Commander Izaak has tried to leave his life of command behind. But some battles don't end on the Nullands, and he doesn't know any other way to survive than by fighting. Years earlier, Izaak Van Tassel was branded a criminal and sentenced to the First Fighters to serve out his term.
Now, finally free, he prepares to leave that life behind -- but not alone. Accompanying him are three people who shape his world. Vincent, his lover, is temperamental, fiercely protective, and jealous of anyone who interacts with Izaak. Their relationship is mutual, built on recognition of each other's emotional and physical presence, though the future remains uncertain. Vincent also harbors a deep dislike for Tarn.
Tarn is Izaak's closest operative and field companion, their bond forged through years of trust, respect, and professional understanding. Tarn is fiercely loyal and protective of Izaak, and their relationship carries an undercurrent of personal care beyond duty. Their first mission together had sent them to a windy, distant planet to rescue a doomed exploration team, a mission that shaped their lives and defined their bonds.
Calvin, Tarn's lover, is young and earnest, a protégé figure who admires Izaak both professionally and personally. Less experienced and often in awe, he is closely watched over by Tarn, leaving Izaak to balance mentorship with leadership. But when an accident in space splits the group, Izaak finds himself stranded on a crippled ship with Calvin, while Tarn, struggling with failing health, must manage the volatile Vincent and navigate the treacherous corridors of the space station Seven Sisters.
As tensions mount and loyalties are tested, Izaak uncovers a connection between their current crisis and that first fateful mission, forcing him to confront both the ghosts of the past and the uncertain future of those he cares for most.