The so-called Valentine's Bandit started the tradition in Montpelier in 2002. Each year, residents wake up to find the red hearts affixed to buildings, shop windows and other downtown fixtures.
The "phantom" has his -- or her -- own Facebook page, dubbed the Montpelier Valentine Phantom Phan Page.
Appreciative fans took to Facebook on Monday. One thanked the Phantom for making her drive to work wonderful.