Firefighters responding to a blaze just outside Cary early Sunday morning found a two-story house completely engulfed in flames.
"Fire was blowing out of every window, every door," said Lt. Michael Douglass of the Cary Fire Protection District. "This was a big house too."
Crews from eight neighboring departments helped fight the box alarm fire at a two-story home on the 700 block of East Main Street Road, Douglass said.
A neighbor of the secluded house called 911 at around 3 a.m. and by the time crews arrived on scene, there was no chance to save the house, Douglass said.
"This fire could have been burning for a while before anyone noticed it," he said.
The owner of the house lives in Burlington, Wis., and was away when the fire started, Douglass said.
It took firefighters about an hour to put out the fire, but the house was at a complete loss.
The cause of the fire remains unknown, but the McHenry County Sheriff's Office fire investigator was called to the scene, Douglass said.
A damage estimate was not available Sunday night.