The last day 85-year-old Henrietta Pearson was seen, was on Detroit's east side Dec. 15.
"It's torture," said Christopher Pearson, Henrietta's son. "The not-knowing."
"She set the alarm and left." said Carla Pearson, her daughter. "I'm not sure where she was going. Maybe to the store.. But she never came back."
Pearson's children say their mother is showing signs of dementia.
"She might get a little confused but she's never not known where she lives," Carla said.
Now Carla and Christopher spend their days searching.
"We've been to every abandoned house and alley," Carla said. "We've overturned mattresses. We've done everything we can do in this immediate area."
They also check in with neighboring police departments in case she has been spotted in another city.
During an interview with FOX 2 they received a call from Detroit police.
But so far their efforts have not given them the answers they want.
Confidentiality laws also complicate their search.
"It limits us because we're basically unable to do anything," Christopher said. "All we can find out is, if they have someone there. Then we have to send the police to take it from there."
The family is calling on the community for help
"I need to know something," Carla said. "I want to bring her home."
The Pearson children are using social media in hopes of increasing awareness about their mother.
"People don't just disappear from the face of earth," Christopher said. "Someone has seen or heard something. All we want is our mother home"
Anyone with information is asked to call Crime Stoppers at 1-800-SPEAK-UP. You never have to leave your name.