In Arlington, Washington state, a hero dog changed his tune and alerted her owners to a fire consuming their neighbor’s house.

It was 3:00 a.m. and a fire was quietly burning the workshop of a nearby North County home. Douglas O’Connor, II, was asleep in the house next door when his dog Lucy woke him up.

“Normally, I just yell at her to go to sleep, you know?” said O’Connor, remembering a hundred instances of waking up to his dog barking.

But, he claimed that this bark was something he had never heard from Lucy before.

“Loud, screaming-type bark. It was totally different than her just barking at a usual, usual bark. It was totally–woke us both up. Something’s wrong. Wow. She was trying to tell us something. ‘”

O’Connor’s wife went to investigate the Australian Shepherd-Labrador mix’s alarm and saw the fire out of the window. They called 911 and firefighters arrived to contain and eventually kill off the blaze before it spread from the detached workshop to the home where the owner was still asleep by the time the engine arrived.

MORE STORIES LIKE THIS: Dog Saves Foster Parents from Fire-Finds Forever Home 1 Day Later

“Firefighters said another 10 minutes that could have reached the house. “That was a bit scary,” O’Connor said.

The firemen got to know the furry early-warning system who was a big hit with them as well as the police.

ROLES REVERSED CHECK IT OUT: Police Officer Jumps Fence to Save Chained Dog from Fire, Not Giving Up Even When Heat Turned Severe

KING 5 News reported that Lucy’s barking was so strong it woke up other neighbors as well, who also alerted fire and rescue along with O’Connor.

WATCH the story below from KING 5 News…

SHARE Lucy The Great Hero With Your Friends…