Serenity June Dennard was 9 years old when she was last seen on February 3, 2019, in the Rapid City, South Dakota area. She was staying at Black Hills Children’s Home, a residential behavioral treatment facility on South Rockerville Road, and was playing in the gym that morning with other children when she suddenly ran outside into extremely cold winter weather. Staff were supervising multiple children; when another child left the gym area the situation became chaotic.

Serenity was last reported near the facility and then along South Rockerville Road around 11:00 a.m., near the cattle guard in front of the home, walking or running northbound. She was about 4 feet 7 inches tall, 95 to 100 pounds, with dark blond hair and blue eyes, and was believed to be without a coat. The surrounding area is rural, wooded, and rugged; cold temperatures, snow, and difficult terrain made searching especially hard.

An extensive search involved numerous law-enforcement agencies, community volunteers, aircraft, and search dogs. Authorities later halted large-scale physical searches but kept the investigation open; they said Serenity appeared to vanish within a very small window and did not view a stranger or neighbor abduction, or the family or facility, as likely. Age-progressed images were released in later years and the case remains unresolved.

If anyone saw Serenity on February 3, 2019, or has information that could help, please share what is known with investigators.