Dark Heart

After heavy blows and overwhelming losses, Isabella continues her life, rising from the ashes like a phoenix, but with a dark soul. The loss of her great love turns her into a cold and frivolous woman; the new order she joins makes her lethal and fearless to kill.
The Order of Silence, the name of her new organization, introduces her to an unfamiliar world, although one of family heritage, that teaches her to operate stealthily and precisely. Thus, giving her the opportunity to fight the evil she hates and providing her with the patience to achieve her longed-for revenge against the Watchers.
A matter of life keeps her away from her country. A matter of honor makes her return and face her greatest fear: the absence of her demon. Everything goes according to plan until the Watchers reappear to screw up her existence and, although she manages to deal with them, there is something she didn't count on and complicates things for her: Shadow.
He returns being a cold man with everyone but vulnerable to her, trying to protect her even though his orders are to hurt her. Trying to push her away yet wanting to win her heart and possess her body, offering her a clandestine love, surrounded by darkness as he cannot show her his identity.
But nothing will be easy with him hiding behind a mask and she hides secrets that would make her vulnerable; when the ghost of a great love haunts them, enemy associations drive them apart and a soul reluctant to new opportunities. Can a dark heart see the light again?