None of the homes were occupied.
RCMP say three homes were ruined but no one was hurt in a series of arsons in Calling Lake.
The first happened just after midnight on July 25th on Park Drive.
A second home across the street went up in flames shortly after the first house.
A third fire happened on Cardinal Street at 6:30am four days after the first two.
None of the homes were occupied during the fires and RCMP determined the events as arson.
RCMP have asked the public to report any suspicious acts or contact police if they have any information on the incidents.