The Three Faces of Fate. Dawn's Warden, #1

Isolde is a warrior haunted by vengeance. When she senses a dark corruption seeping into the lifeblood of Valhaven, she sets out to hunt those responsible. But she's not the only one who sees the signs. Aidan, a druid scarred by past battles against the monstrous demon Lysander, recognises the threat for what it is. And Jen, a brilliant but reckless hacker, stumbles onto a digital trail leading straight into the heart of the city's growing nightmare.
Their paths collide in a tangle of myth, magic, and conspiracy-because something far older and far more dangerous than they imagined is stirring. A goddess is bound in chains, and the darkness feeding on Valhaven is only the beginning. To break the cycle and stop the city's fall, they must unravel the mystery of the Three Faces of Fate. If they don't, the forces of oblivion will swallow them whole.
Their fight for survival has only just begun.