“Nephilim blood is dominant,” said Jem. “That’s why there are three rules for those who leave the Clave. First, you must sever contact with any and all Shadowhunters you have ever known, even your own family. They can never speak to you again, nor can you speak to them. Second, you cannot call upon the Clave for help, no matter what your danger. And the third . . .” “What’s the third?” “Even should you leave the Clave,” said Jem, “they can still lay claim to your children.”
