Boone County authorities are conducting a death investigation after a house fire near Advance. Justin Sparks, the county coroner, said it happened Thursday in the 3300 block of S. County Road 700 West. Firefighters searching the burning home found an adult male inside. He was pronounced dead at the scene. The victim’s identity is being withheld pending notification of family. The coroner said an autopsy is scheduled to determine the cause and manner of death.