The search for missing Amber Harris continued Sunday as, for a second consecutive day, a small army of volunteers pitched in to look for the 12-year-old girl.

It was cold and windy, but 170 volunteers worked in small groups with other volunteers following in cars.

The search is organized by The Klaas Kids Foundation, a national missing children's organization relying on volunteers to go door-to-door.

Volunteers were briefed on how to conduct the search.

"I just can't imagine what it would be like to lose our children," said volunteer David Johnson.

Searchers searched through empty lots, looking for any sign of the girl.

"If my kids were gone, I would hope anyone and everyone would be up helping me find my kids for me," said Nickie Puentes. "You can't just sit back and know there's a child out there, and God knows what's happening to her and just wait for somebody else to do it."

Harris was last seen November 29th getting off her school bus at 20th and Pinkney, just four blocks from home.

Her book bag was found at 21st and Lake last month.

She was last seen wearing light blue jeans, a white and black wind breaker and white tennis shoes.

The Klass Kids Foundation will turn over any information or items found during the two-day search to police.