Magnus had a good friend of his to come over, Tessa Gray as then he invited his daughter also over. He wanted to each other. Tessa is also a rare Shadowhunter-Warlock. Of course his daughter was there first. "Dad, why did you call me over?" She went straight to the point.

Magnus smiled at his daughter. "Well, I want you to meet a good friend of mine, but she hasn't been arrived yet."

"Oh, who is she?" Marley asked to him.

Just then, Tessa arrived there. Magnus greeted her. "Tessa, good to see you again."

"Hello Magnus." Tessa greeted him back as then she saw Marley standing there. "Who is she?"

"She is my daughter, Marley." Magnus replied to her.

"Hello." Marley greeted her.

"Hello." Tessa greeted back as them she looked at Magnus. "Is she the reason I'm here?"

Magnus nodded to her. "Yes, you see, she a rare Shadowhunter-Warlock like you."

"What?!" Tessa and Marley both exclaimed to him. Tessa blinked at him. "So, you mean, she is like me?" she asked to him. "I thought you couldn't reproduce."

"That's what I thought too, but Marley is standing right here. Her mother didn't have any runes around the time she born." Magnus explained it to her, a short version of the story.

"Oh, well I guess, she a rarer type than I am." Tessa comment to him. "But a Shadowhunter-Warlock none less."

Magnus nodded to her. "Yes, she is."

Then Tessa looked at Marley. "So, how old are you, when you found out that you are also a warlock?"

"18, I'm almost 19, miss." Marley replied to her.

"So, you are still young then." Tessa comment to her.

Marley nodded to her. "I guess."

Then Magnus comment to her. "Well, Tessa is 240 old or so."

"Magnus, I'm younger than that. 190 years old." Tessa looked at him.

Marley eyes widen. "So… So… Did your Warlock side, did it took over?"

"Not, exactly. I'm both, my dear." Tessa replied to her. "I just stopped aging."

"So, everyone I love will grow old and die, cause I'm immortal?" Marley asked to her.

"We have to wait and see." Tessa replied to her. "There is one other than us and he/she died of old age, so its different for each person."

Marley nodded to her. "Okay."