When Phoebe Halliwell returned to San Francisco to live with her older sisters, Prue and Piper, in Halliwell Manor, she had no idea how much her life—all of their lives—would change. Because when Phoebe found The Book of Shadows in the manor's attic, she learned that she and her sisters were the Charmed Ones, the most powerful witches of all time. Battling demons, warlocks, and countless evil spirits, Piper and Phoebe lost Prue but discovered half-witch, half-Whitelighter Paige Matthews, the sister they never knew. The Power of Three was reborn.