Officials said the federal crime-busting bureau was brought in because of its expertise and experience in solving missing children cases. The FBI also will be bringing in more law enforcement personnel to assist.

As the search for 10-year-old Lindsey J. Baum stretched into its second day Sunday, police and family - along with the whole town - are baffled and concerned at the girl's disappearance in a town where everyone knows their neighbors.

Lindsey was last seen between 9 and 10 p.m. Friday when she left her friend's home on Maple Street, where she had been visiting, said Dave Pimentel of the Grays Harbor County Sheriff's Office.

Lindsey was going to walk the four blocks to her home on Mommsen Road, which is roughly a 10-minute walk. But something happened in that short distance - Lindsey never arrived home.

Agents go door to door asking residents if they can shed any light on the disappearance of Lindsey Baum, 10.

The search was resumed Sunday at 6 a.m., and has now been expanded. Three times as many people are involved as on Saturday, and searchers are looking at areas that weren't checked earlier. So far, however, their efforts have met with the same futile result as the day before.

Police are hesitant to call the girl's disappearance a case of foul play just yet, but the girl's family fears the worst.

"I've tried to keep the thought of somebody grabbing her out of my mind," says her mother, Melissa Baum.

She says Lindsey argued with her brother on her way to a friend's house Friday night. She talked to her friend for a bit, then started for home as darkness fell.

The friend's father, Scott Williams, said he asked Lindsey to go home before it got too dark.

"She was here 10, 15 minutes, and then, you know, we said, 'You should probably get going before it gets dark,' and that was the last we heard of her," he said.

Witnesses say Lindsey seemed normal as she headed out around 9:15. Another friend even walked her part of the way, but Lindsey never showed up at her home.

Searchers fan out to search for Lindsey Baum, 10.

Now hope has turned to anxiety and alarm among frustrated search teams - and the whole town, population 1,550.

The mother is also at a loss.

She says her daughter is upset about her recent divorce, but doesn't have money to run away - and has never tried to run away before. Her mom doubts at this point that Lindsey is trying to hide.

"If somebody does have her, I wish they would just drop her off somewhere where she can get to a pay phone and call 911 or call home, so that we can come and get her," she says, sobbing.

Melissa McCann, a family friend, said, "This is a small town. These things don't happen. And yet here they are. She comes from her friend's (house) a lot, so it doesn't make sense that she didn't show up at home. We're just baffled."

Lindsey's father lives in Tennessee. Police have contacted him, and he's not suspected of any involvement in Lindsey's disappearance.

Pimentel said it's strange that nobody saw anything unusual.

"Such a small community like this - you can't do much in a town this size without everybody knowing about it," he said. "Everybody in town knows she's unaccounted for."

Lindsey was last seen wearing a gray or blue hooded pullover sweatshirt, with blue jeans and black shoes. She has brown eyes, brown hair, and stands about 4-feet-9-inches and weighs about 80 pounds.

Anyone with information is asked to call the Grays Harbor 911 Center at (800) 281-6944 or the McCleary Police Department at (360) 495-3107.