Chapter 1 - THE TABLET BESIDE THE PADLOCK

The paramedic fitted an oxygen mask over Ava’s face while my father stood in the garage doorway and watched.
“Cold might cure laziness,” Frank said.
I turned from my sister so sharply my knee struck the concrete.
Ava lay beside a row of plastic storage bins, her blonde hair damp with sweat despite the freezing air. Her black coat had been torn down one sleeve. Bruises darkened her cheek, wrists and ribs. A fresh bandage covered her temple, and the oxygen tubing the paramedic had brought curled across the floor.
Her own equipment was missing.
“You locked her in here without her oxygen?” I demanded.
Dad folded his arms across his red plaid shirt.
“She locked herself in during one of her episodes.”
A paramedic named Lucas checked Ava’s pulse while his partner adjusted the oxygen flow. Near Dad’s boots lay a cut chain and a brass padlock. The matching key was clipped to his belt.
Lucas looked from the lock to Dad.
“Sir, step back.”
“This is my house.”
“And this is now an active medical scene.”
Ava’s eyes opened halfway.
I leaned close. “I’m here. Don’t try to move.”
“He took the machine,” she whispered through the mask. “Then changed the papers.”
My father reached toward the phone in his pocket.
Lucas stood.
“Sir, keep your hands where I can see them.”
Dad stopped.
The police officer who had cut the chain removed the phone and the tablet lying on the laundry cabinet. Dad claimed both belonged to him and contained private banking information.
That made the officer preserve them instead of handing them back.
At Miami Valley Hospital, doctors treated Ava for hypothermia, dangerously low oxygen and injuries consistent with more than one assault. She had pulmonary arterial hypertension, a chronic condition that required supplemental oxygen whenever her levels dropped.
Without it, her heart worked harder to move blood through damaged vessels in her lungs.
Dad knew that better than anyone.
He had attended appointments, argued with insurers and spent years presenting himself as the exhausted father who had sacrificed everything for his sick daughter.
A detective named Renee Coleman met me outside the trauma bay shortly after midnight.
“We found a smart-home application on your father’s tablet,” she said. “The garage heater was disabled remotely at 6:40 p.m.”
I looked through the glass at Ava.
“What time did he lock her in?”
“We’re still establishing that.”
Detective Coleman turned her own tablet toward me.
“At 6:42, the same device accessed an investment account in Ava’s name and changed the payable-on-death beneficiary.”
“Changed it to whom?”
“Your father.”
My stomach tightened.
The account contained money left from a settlement Ava received after complications from childhood heart surgery. I had been listed as beneficiary for years, not because I expected anything to happen to her, but because our mother wanted me to protect whatever remained.
Dad had always called that arrangement insulting.
A second login had occurred at 6:47.
Someone tried to upload a new durable power of attorney granting Frank authority over all Ava’s medical and financial decisions.
The document had not been accepted because Ava’s electronic signature was incomplete.
Detective Coleman lowered her voice.
“Your sister may have been locked in that garage because she refused to finish signing.”
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Through the glass, Ava lifted one hand from beneath the warming blanket.
Her fingers closed around empty air as if she were still searching for the oxygen machine Dad had taken.