It is not unusual for Nadejda Cojevnicova to go on long walks in her West Hill neighborhood, sometimes for hours at a time.

But when the 59-year-old woman didn’t return home on a Saturday night last week, Tatiana Samoilova grew worried. She called 911 late that night, but authorities haven’t been able to come up with any trace of Samoilova’s mother, who hasn’t been seen since she walked out the front door of the family’s Auburn home on Sept. 12.

A week later, Samoilova still has no idea of her mother’s whereabouts. It remains a mystery, a haunting ordeal for the family.

“She could have been abducted, kidnapped. We don’t know,” Samoilova said of her mother, a recent immigrant from Russia who speaks little English. “We don’t have anything at all. We have nothing.”

King County sheriff’s deputies have little to work on, and remain just as puzzled. The problem, according to authorities, is that when Cojevnicova left her daughter’s Woodbrook subdivision home at about 4:30 p.m. that afternoon, she carried no personal belongings. There was no traceable identification, passport or cell phone, which makes a search even more difficult, according to King County sheriff’s Sgt. John Urquhart.

“If we knew where to look, we would be out there looking,” said Urquhart, adding the woman could be anywhere, given her mobility.

Samoilova, however, remains frustrated about the sheriffs’ search efforts. Little has been done to find her mother, she claims.

“I needed to see more from police,” she said. “I don’t understand it.”

Family, friends and neighbors have conducted nearby searches. Samoilova also has contacted churches, hospitals and other places without success. The group also has organized searches of its own, even exploring the wooded area that abuts the neighborhood.

“I feel like I am on my own, but my neighbors have been helpful. They have been so helpful,” Samoilova said. “It’s a great community, great people.”

Urquhart said his department receives between 600-700 missing persons reports each year, including runaways. “And on the bulk, many have happy endings,” he said.

Given the sheriffs’ limited resources and information, this case remains even more challenging, he added.

Cojevnicova came to the United States in March to live permanently with her daughter and grandchildren. She is retired cashier who worked for a central store in Moldova, Russia for more than 30 years.

Samoilova said her mother does not have a mental condition that might have led her to become disoriented or lost. However, Samoilova said her mother has been treated for depression. She left the house that day “a little upset … but nothing unusual.” Samoilova says her mother has had trouble getting adjusted to her new home, given the language barrier.

“It’s difficult for anybody to start a new life, especially when you are older,” Samoilova said.

Samoilova told authorities that her mother, given her depression, might have suicidal tendencies, which she believes has discouraged sheriff deputies from extending a search for her.

Urquhart said that isn’t the case. A person’s mental state doesn’t dictate the department’s ability to pursue searches, he said.

“We search for missing people, people with dementia, people who might have mental disorders … all of the above,” Urquhart said. “There’s no policy that changes that.”

Samoilova said her mother was taught some conversational English, such as “I don’t speak English” and “Can you help me?”

She said her mother’s absence has been painful.

“She helps us. She helps me with the kids around the home,” Samoilova said. “My mother has never done this before.”

Cojevnicova was last wearing blue jeans, T-shirt and brown leather Skechers. The 5-foot-1, 130-pound woman has short brown hair and brown eyes, with no scars or tattoos.

Anyone with information is asked to call 253-569-5667.