Marked by the Sicario

Sage Donnelly survives her ER shifts on dark humor, steady hands, and the kind of compartmentalization that keeps a person upright at 3 AM. Then she walks through the wrong alley at the wrong time and watches a man die. The killer sees her. She goes home, locks her door, and finds a book on her kitchen counter that she did not buy. Mateo Cisneros has one job: determine whether the witness will talk and handle it if she does. He is Emilio Salazar's most reliable asset. Precise, quiet, lethal. He does not leave loose ends. But he leaves her a book. Then another. Then another. Told in alternating first person, Marked by the Sicario is a dark cartel romance set in the dust and heat of the El Paso-Juárez border. Sage is a woman who reads trauma for a living and refuses to become a victim. Mateo is a man who kills for a living and has never wanted anyone to see him clearly. Their connection builds through margin notes and stolen conversations, through the weight of shared silence and the growing certainty that whatever this is will get them both killed. The Salazar cartel is at war. A rival faction is probing supply lines. A federal agent is circling. And Mateo's orders are evolving from watch her to something neither of them can walk back from. Content note: explicit cartel violence, morally gray characters, and heat that earns its slow burn.