When I got the news that my sister’s heart disease had come back, I was tied to an operating table by Natalie.

Crying, I begged her, “Natalie, please, I’m begging you! Let me go to the hospital—my sister’s having a heart attack!”

Wearing her white coat, Natalie calmly mixed her medicine as if she didn’t hear me at all.

I struggled hard, but the bodyguards she ordered held me down tightly.

“Natalie, you’re a doctor—you know a heart attack can kill someone! I’m begging you, please let me go. When my sister gets better, I’ll come back and be your test subject!”

Natalie turned to look at me, her eyes full of disdain. “Aren’t you already my test subject?”

She sneered, “Besides, your sister’s life is worthless. Even if she dies, what does that have to do with me? If you dare not cooperate, I’ll have Zayn stop paying for her medical bills. Then she’ll die anyway—if not now, soon enough.”

I froze completely, my struggles stopping without me realizing it.

Tears blurred my vision.

Just then, Zayn pushed the door open and walked in.

A faint spark of hope lit up in my eyes. “Zayn, my sister’s heart disease came back, she—”