 Phoebe asks Piper to find a spell to protect the human Cole. When the sisters meet the Halliwell s muse Melody, they become aware that the powerful warlock Devlin has stolen the ring of inspiration and is kidnapping the muses to increase his powers and create an evil faction to take the power of The Source. Inspired by their muse, the Halliwell sisters plot a plan to vanquish Devlin and save the muses.