At exactly 1:58 a.m., my eight-year-old granddaughter called and whispered that she felt unbearably hot. When I forced my way into my son’s empty house, I found her dru:gged on the hallway floor, her brother l0:cked inside a closet, and a note on the counter warning me not to believe anything she said about what had happened.

At exactly 1:58 in the morning, my eight-year-old granddaughter called and whispered that she felt burning hot. By the time I reached my son Brian’s supposedly empty house, I would find Lily barely conscious on the hallway floor, medication that had never been prescribed for her sitting on the kitchen counter, and a handwritten note from my own son telling me not to believe anything she said about the closet.

My name is Robert, and until that phone call, I believed Lily was staying with her aunt for a couple of nights because she had a minor cold. Brian and his wife, Marissa, had told everyone they were taking my ten-year-old grandson, Mason, to Florida for his birthday, so there was absolutely no reason Lily should have been alone inside their house.

When I answered the phone, Lily didn’t speak immediately. All I could hear was her thin, uneven breathing before her weak voice finally came through.

“Grandpa, I feel so hot.”

I sat upright so quickly that my glasses fell from the nightstand.

“Lily, where are you?”

“At home.”

The answer immediately confused me. I asked where Brian and Marissa were, but Lily went silent for several seconds before finally responding.

“They left.”

I was already pulling on my clothes.

“Are the doors locked?”

“I don’t know. My head hurts. The kitchen light is on.”

Her words came slowly, as though speaking required more strength than she had left. I told her to stay on the phone with me and promised I was coming.

“I’m scared.”

“I’m coming.”

Brian’s neighborhood was normally fourteen minutes away, but I remember almost nothing about that drive except gripping the steering wheel and repeatedly checking that Lily was still connected. When I arrived shortly after two, Brian’s driveway was completely empty, with no SUV and no indication that either adult intended to return anytime soon.

I used the emergency key Brian had shown me years earlier and entered the house. A strangely sweet medicinal smell hung in the warm air, and although the kitchen light was on exactly as Lily had described, the rest of the house was disturbingly quiet.

“Lily!”

Then I saw her.

She was curled on the hallway floor in pink pajamas, her hair damp against her forehead and her face deeply flushed. She looked as though she’d tried crawling toward the kitchen before becoming too weak to continue.

“Grandpa…”

I dropped beside her and touched her forehead. The heat coming from her skin frightened me enough that I immediately called 911 and lifted her against my chest while the dispatcher began asking questions.

As I answered, I noticed an orange prescription bottle on the kitchen counter. The name printed on it wasn’t Lily’s, and the medication hadn’t been prescribed for a child.

Beside it sat Brian’s house keys and a folded handwritten note beginning with one word.

Dad.

Brian told me not to overreact. He claimed Lily became dramatic whenever she was sick and admitted that they’d given her something to make her sleep so she wouldn’t ruin Mason’s birthday trip again.

Then came his instruction.

“Please don’t call anyone.”

I stared at those words while listening to the dispatcher assure me that emergency responders were already coming. Whatever Brian had expected me to do, I’d already ignored his request.

Then I reached the final line.

“And whatever she tells you, don’t believe her about the closet.”

My attention immediately shifted toward the hallway closet about ten feet away. Lily’s weak fingers tightened around my shirt when she saw where I was looking.

Then came a sound from behind the door.

A soft knock.

I started toward it with Lily still in my arms, but she suddenly whispered:

“Grandpa.”

I looked down at her.

“Don’t open it.”

Before I could ask why, another faint knock came from inside.

Then the doorknob slowly began turning.

I shifted Lily against my chest and stared at the closet as the knob stopped moving. For a moment, the hallway became completely silent, and then I called the only name that suddenly made sense.

“Mason?”

There was a pause before a weak voice answered from behind the door.

“Grandpa?”

I opened it immediately and found my ten-year-old grandson sitting on the closet floor with his knees drawn against his chest. His tablet was beside him with a dead screen, and one of his feet was missing a sneaker, which finally explained the single shoe I’d noticed lying in the hallway when I entered.

Mason squinted against the kitchen light, but he didn’t ask why I was there or where his parents had gone. His attention went directly to the little girl burning with fever in my arms.

“Is she okay?”

“Help is coming.”

I asked Mason why he’d been inside the closet, and his expression immediately changed. He didn’t look embarrassed about being punished or worried that he’d broken some ordinary household rule; he looked genuinely afraid.

He picked up the dead tablet and pressed it tightly against his chest.