CEDAR RAPIDS, Iowa - There is no denying the bond that can develop between people and their pets.
A miniature schnauzer in Iowa proved that nothing, not even a bit of distance, can break that bond.
"We looked up and there was this dog just running across the lobby," said Samantha Conrad, a security officer at Mercy Medical Center.
Just like other visitors, Sissy the Schnauzer wandered through the two automatic doors and strolled right into the hospital.
"We started looking at the tags and we saw how far away the dog lived, as far as going about 15 blocks to get here. So, it was quite an amazing journey the dog made," said Conrad.
The security guard used the dog's tags to call one of the owners at home.
"I thought she wanted to go someplace, but I didn't know where and [she] had never run away before," said Dale Franck.
That is when the security guard realized Dale's wife was getting treatment at Mercy.
So far from home, Sissy found exactly what she was missing.
"She wanted to go see her mom. She was on a mission but she couldn't find the right elevator to take," Franck said.
The family believes Sissy ran away from home to find the person who is home.
"She missed mom, that's all I can say. She missed mom and she knew to come see mom," said Sarah Wood, Nancy's daughter.
Nancy Franck spent several weeks in the hospital after undergoing treatment for cancer.
"I don't know how she found the right door or did any of that by herself," Nancy Franck said. "I said, 'Did you sneak this dog in here?' She said, 'No, she snuck herself in here, mom."
The family still can't figure out how Sissy knew where to go.
After a long couple weeks in the hospital, the surprise visitor brought a much-needed smile to Nancy's face.
"That was great just being able to see her. That was perfect. I'm glad she thought of it," she said.
Family members say they had not taken Sissy to the hospital to visit Nancy.
However, Nancy works next to the hospital and the dog has been in the car when the family dropped her off at work.