Redemption Ark by Alastair Reynolds

In a universe where ancient alien technology and interstellar conflicts shape the fate of civilizations, a group of renegade Conjoiners, led by the enigmatic Ilia Volyova, embarks on a desperate mission to retrieve a powerful weapon capable of altering the course of a looming war. As they navigate through treacherous alliances and face the relentless pursuit of the Inhibitors, a race bent on eradicating intelligent life, the crew must confront their own pasts and the ethical dilemmas of wielding such destructive power. Amidst the chaos, humanity's survival hangs in the balance, as the boundaries between friend and foe blur in the vastness of space.