Manor attic. Piper stands at the Book of Shadows, perusing the entry on muses as Phoebe and Raige clomp in from the stairs. Phoebe's first question regards Piper's assigned task of creating a protection potion. Piper hasn't had a chance to perfect it, but she does thank Phoebe and Raige for their successful work with Bev. The three cluster around the Book to read the muses' Beaux-Arts-style entry. Muses are "[b]eings of pure light whose sole purpose is to inspire people's passion and creativity. Like angels, they guide us with an unseen hand of Inspiration. Unlike Whitelighter's [sic, and I know that's going to drive Sars nuts], Muses are invisible even to their charges and can only be seen by other angelic beings." As Phoebe wonders aloud how invisible beings could be a target for dark demonic forces, a glowy muse fades into the attic behind her. You know, I'm torn. I could call her Miss Clio. Or Eroto. Or Erratic, or Thalidomide, or any potty-related variation on "Urania." However, for some reason it's down to a choice between Eutwerpe and Twerpsichore. Since Euterpe was the muse in charge of music and the harebrained writing staff has seen fit to assign this character the name "Melody," Eutwerpe it is. In answer to Phoebe, Piper notes that asking a muse herself might be a good start. Unfortunately, Piper has no idea how to summon a muse. Eutwerpe takes control of the situation by laying a hand on Phoebe's shoulder. Phoebe bursts out with the following rhyme: