Emerald Blaze. A Hidden Legacy Novel

Ilona Andrews, #1 New York Times bestsellingauthor, continues her spellbinding series set in the Hidden Legacy world wheremagic controls everything.except the hearts of those who wield it. As Prime magic users, Catalina Baylor andher sisters have extraordinary powers-powers their ruthless grandmother wouldlove to control. Catalina can earn herfamily some protection working asdeputy to the Warden of Texas, overseeing breaches of magic law in the state, butthat has risks as well.
When House Baylor is under attack and monsters haunther every step, Catalina is forced to rely on handsome, dangerous AlessandroSagredo, the Prime who crushed her heart. Thenightmare that Alessandro has fought since childhood has come roaring back tolife, but now Catalina is under threat. Not even his lifelong quest for revengewill stop him from keeping her safe, even if everybattle could be his last.
Because Catalina won't rest until she stops the useof the illicit, power-granting serum that's tearing their worldapart.