"Did you see Mia?"

His eyes moved toward the security camera.

"Maybe."

"Was the camera working?"

Walter stopped sweeping.

"It was."

"Then why does the school say there's no recording?"

Walter looked around.

Then lowered his voice.

"Because someone deleted it."

Nora's heart began pounding.

"Who?"

"I don't know."

"You must have seen something."

Walter leaned against his broom.

"Mrs. Bennett, I've worked here twenty-three years."

"Then you know what happens."

He nodded.

"People with influence get protected."

"Who deleted the video?"

Walter shook his head.

"But I know where the backup is."

Nora stared at him.

"Where?"

Walter pointed toward the old maintenance building.

"The camera system sends an automatic copy there every night."

"Does the principal know?"

Walter gave a bitter smile.

"He thinks nobody remembers the old system exists."

Nora finally understood.

The school had deleted the evidence.

But they had forgotten about the backup.

Chapter 5 — The Recording

The file was only seventeen minutes long.

Nora watched it once.

Then again.

Mia was walking toward the science wing.