Abismo (Serie Atenea, 2)

Alex is the Brotherhood's deadliest weapon. Cold and ruthless, he revels in what he does best: breaking wills, torturing traitors, and eliminating threats without a second thought. They call him the Abyss because those who fall into his hands never return. But beneath that merciless mask lies a brutal past that could destroy him. Alba is the brilliant mastermind behind Athena's operations. Her unassuming appearance masks a prodigious hacker and strategist. However, when a mission goes awry and she becomes a target, Shadow decides to place her under Alex's protection. Neither he wants to babysit nor does she want to be watched over, but they have no choice if they intend to defeat the enemy that stalks them. When danger draws near and old wounds are reopened, resisting each other will be a losing battle.