Marty the Schnauzer disappeared more than a year ago. "He loved to run around and he loved to chase squirrels," said 11-year-old Eileen.

It was about a year ago when their fence no longer contained the energetic dog, and he ran off.

"I said 'maybe we'd get him back, but I'm sure that he's healthy and having a good time,' " said Eileen's dad, Peter. "I kind of gave her that story. I'm don't know if she bought that story or not."

The Kelly's yard remained empty for more than a year, until they got a call from the King County Animal Shelter.

Marty had been found in a home about a half hour from the Kelly's house. He was in a home, well cared for, but the family didn't have a license for him. His microchip showed he belong with the Kelly family.

The tiny microchips are implanted under the skin of pets. A handheld device tells vets and animal control officers who the animal belongs to.

When Marty returned, Eileen almost didn't believe her dad's story.

"At first, actually, I thought my dad bought a new dog and named him Marty," she said. "I never thought we'd get him back."

The family now has an invisible fence, which they hope stops Marty from wondering off again.

If you're interested in getting a microchip to help identify your pet, you can call the King County Animal Shelter at 206-296-42222.