A man and woman were found stealing items inside the cottage on Fire Route 85E southeast of Apsley at about noon, Peterborough County OPP report.
Officers responded and arrested a the woman, who stayed inside the cottage. The male fled before officers arrived.
He is described as five feet, eight inches tall, very thin, wearing glasses, a button down plaid shirt and shorts.
The woman, 34, from Burlington, faces charges of break and enter, theft under $5,000 and mischief under $5,000.
If you have information about the break in, call Peterborough County OPP at 705-742-0401 (night line 1-888-310-1122).
Remain anonymous by calling Peterborough Northumberland Crime Stoppers at 1-800-222-TIPS, and you might get a cash reward.