A Tucson boy with cystic fibrosis is thanking a complete stranger for making his dream of adopting a dog come true.
Two years ago, you wouldn't have recognized her Bella.
The pitbull was near-death when she was saved by the family of a little boy who knows exactly what it's like to be sick.
Brendan Desmet of ACACIA Animal Hospital says she is a strong, brave girl.
"She was thin, limping, she obviously hadn't received any kind of loving care," Desmet said.
The Contreras family had been looking for a dog to keep company with their 8-year old son Nathan. He has cystic fibrosis, and is too sick go to a public school, but caring for a sick dog seemed too costly on top of Nathan's medical bills.
"When I looked at the picture, she looked incredibly sad" Leslie Contreras said.
Until a stranger stepped in...
"We were thinking it would be a miracle if someone would call right now, and they did," Nathan said.
A random stranger offered to cover all adoption and medical costs for anyone who would take Bella home.
"She was two hours away from being killed. And I think of the gift, and the blessing, and the miracle of what has happened," Leslie said.
Bella and Nathan help each other in more ways than the family could have imagined.
"Bella is really helping with his attitude, because he really needed a friend and she's his best friend right now," Patrick Contreras said.
"I've always wanted a dog, since I was like 4 or something, and yeah- it's been great," Nathan said.
The Contreras family is sharing their story to raise awareness about cystic fibrosis. And they hope to encourage others to adopt from local shelters.