Harpy Thyme is the seventeenth book of the Xanth series by Piers Anthony. Gloha Goblin-Harpy is searching for love, and decides to ask the Magician Humfrey where she can find it. He tells her to ask his second son Crombie the Soldier. Gloha goes on a quest for love, accompanied by Magician Trent and Cynthia, a winged centaur filly. Along the way they meet Graeboe giant who has an "incurable" disease when Metria then discovers that she wants to find love and finds Veleno.