Nobody at the county shelter remembered the last time a sound had changed the temperature of a building.
Then the Malinois arrived.

Animal control brought him in on a Monday afternoon with two officers sweating through their uniforms and one bent kennel gate rattling in the back of the truck.
The dog was black-faced, tan-bodied, filthy from the road, and so exhausted that his legs shook under him.
Still, every person who stepped toward him saw the same warning in his eyes.
Come closer and I will do the job I was built to do.
Brenda Yates had run the county shelter for eleven years, and she had seen fear wear many faces.
She had seen puppies tremble in laundry baskets.
She had seen old hounds press their faces into corners.
She had seen dogs snap because pain made the world too loud.
This one was different.
He was not confused in the ordinary way.
He watched doors, hands, feet, keys, shoulders, and breathing.
He studied people the way people study storms.
By the second day, he had refused food, flipped every water bowl, and bent the front of a kennel hard enough to split the weld.
By the third day, he had been moved into the old quarantine run.
Brenda hated that room.
It was concrete and steel, meant for short emergencies, not for a living creature with a mind still burning behind his eyes.
But she had two young techs, one veterinarian, a lobby full of adopters, and a staff who had started flinching every time the back hallway shook.