FF Let Down Your Hair (Urban Fairytales, #5) by Erik Schubach

The Avatars in Seattle stumble upon the journals of past Avatars, and Parker starts reading the story of Rapunzel in her own words.

After spending half her life imprisoned by the dark witch, Dame Gothel, Rapunzel has vowed to hunt her down so that she can cause no more harm to the innocents of the world.

In her hunt, she stumbles upon the most unlikely of companions. A young house maid, Evelyn, who turns Rapunzel's life upside down by taking over her tower and her heart.

Together they must hunt down the most vile black magic practitioner of their time.