Cumbria Police are asking for people with information about an arson attack at Kirkby Lonsdale to get in touch.
They say the suspect is believed to have used a torch lighter fluid to start a fire behind the victim's back door.
The attack happened at a house at Lunefield Garde over the May Day bank holiday weekend. A number of garden chairs and pots were damaged.
Anyone can contact the police by emailing email@example.com, by telephoning 101 and asking to speak to PC 2339 Katherine or anonymously through Crimestoppers on 0800 555 111.