California girl undergoing chemo reunited with missing dog

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

ORANGE COUNTY, CA - Meko the dog vanished during a family vacation in parker, Arizona a year and a half ago. Seven-year-old Mady O'brien was really devastated. Her family prayed for his safe return. They looked everywhere for him and Mady never forgot her best friend.

But by May, he was the last thing on her mind. Mady was diagnosed with a brain tumorand everything changed. After an intense surgery, almost 30 chemo and radiation treatments and countless hospital visits, Mady struggled to walk again. Now, as she waits to get the all clear, her family has one prayer.

Then one month ago as Mady and her mom were on their way to another round of chemotherapy. It was the Yavapai Humane Society. Meko turned up on the streets of Prescott, Arizona. A microchip led volunteers to the O'Brien's phone number. Mady's dad made the 400-mile trek to get him.

Back home, Mady waited for her best friend. Mady's parents know this isn't just a story about a girl and her dog. It's about one almost impossible prayer answered and one more to go.

Mady has three more rounds of chemotherapy to go.