Historias de Uncooperative

He's held onto three words alone spoken by a girl he's barely known, and she's forgotten all about him. Should he let go or hang onto those three words alone?

(Forever fanfiction) It all started after World War II. The Mengele family has hidden a secret after the camps were liberated they managed to keep some of their experiments, which they have been testing to perfect. Now, generations later, Henry Morgan and Jo Martinez stumble upon a case that will keep them on their toes. A twenty year old by the name of Seth Smith has been murdered, his sister, Fey Smith, is brought in for questioning. What happens when she refuses to answer and the answers she does give lead to dead end? And will a rising cult bring more questions than answers? Then their surviving victim goes missing, and Henry thinks he can figure out just the immortal who took her. Can he figure out why in time and save the young nineteen year old's life?