Chapter 5 - The Unseen Sibling

I stared at the photograph, my brain struggling to reconcile the image in my hands with the history I thought I knew.
Elena and Rosa.
My mother was an only child. She had told me a hundred times about growing up by herself in that drafty farmhouse after her parents died. She had no sisters. She had no siblings at all.
So who was Rosa?
With trembling fingers, I set the photograph aside and unfolded the official document hidden beneath the stack of pictures. It was a birth certificate—or rather, a pair of birth certificates issued by a hospital in Boston, dated December 14, forty-five years ago.
Twin girls.
Rosa Vance and Elena Vance.
A cold shudder raced down my spine. I kept reading, scanning the medical notes attached to the bottom of the registry page. The text was dense, clinical, and horrifying: Conjoined twin presentation (parasitic twin / fetus in fetu / heteropagous twin). Surgical separation attempted at age two months. High risk of maternal/infant mortality. Case transferred to experimental research ward.
I dropped the document as if it had burned my skin.
My mother hadn't been pregnant with a secret lover. She hadn't been hiding an affair.
The mass removed from her abdomen wasn't just a calcified ectopic pregnancy—it was the remnants of her twin sister, whom she had absorbed or carried inside her body since they were torn apart in a hospital room half a century ago.
A sharp, metallic click echoed from the hallway outside the bedroom door.
I froze, my blood running instantly cold.
The front door lock turned.
Footsteps—slow, heavy, and deliberate—stepped onto the hardwood floor of the foyer.
Mark was at the hospital. The babysitter had taken Maya.
May you like
There was no one else in the house.
I scrambled to my feet, clutching the photographs and the birth certificates to my chest, backing slowly toward the corner of the guest bedroom as a shadow fell across the open doorway.