When I returned from the trip, still carrying the smell of the airport on my clothes and my head full of plans to hug my husband, I found the house silent. On the table lay a note in his handwriting—along with my mother-in-law’s: “TAKE CARE OF THIS SENILE OLD WOMAN.”

“Help me get my revenge.”

I froze.

“What are you saying, Dolores?”
Her eyes locked onto mine with a sharpness that unsettled me.

“They have no idea who I really am,” she murmured, almost proudly. “But you’re about to find out.”

A chill ran down my spine. Since I married Javier, the official version about her had always been simple: an old woman with dementia living off a tiny pension, a burden. But that look didn’t belong to a lost mind.

“In the dresser… bottom drawer…” Each word seemed to cost her breath. “The green envelope. Take it. It’s for you.”

I glanced at the old wooden dresser across from the bed. Its varnish was chipped, a crucifix hanging above it. I hesitated.

“First I’m calling an ambulance, Dolores. You’re very sick.”

Her fingers tightened around my wrist with surprising strength.

“First… the envelope,” she insisted. “Then do whatever you want.”

I swallowed, stood up, and opened the bottom drawer. It was full of neatly folded sheets. At the very back, almost pressed against the wood, I saw a dark green envelope with no sender. My name was written across it in firm letters:

“LUCÍA MARTÍN GARCÍA.”

I picked it up carefully. It was heavy. My heart pounded in my ears.

“Open it,” she whispered.

I tore the edge open. Inside was a thick stack of photocopies, several original documents with notary stamps, and a small black USB drive clipped together.

The first page read in capital letters:

“FOR WHEN I DECIDE TO COLLECT WHAT THEY OWE ME.”

Just then, behind me, the front door lock turned sharply.

The metallic sound cut through me. I quickly closed the envelope and slipped the USB back inside, hiding it beneath the folded sheets just as a shrill voice echoed down the hallway.

“Lucía? Are you back already?” It was Pilar.

I took a deep breath and stepped into the hallway, closing the bedroom door behind me.