Ivy Morris, the wanderer, is Cara Hunter's grandmother. Ivy has raised Cara for several years, often traveling around from house to house. Ivy is a great friend to the unicorns, having lived among them in Luster for several years. Ivy has a mysterious connection to both unicorns and Hunters. Ivy came to Luster as a small girl. She was living in an orphanage when a husband and wife came to adopt her. Ivy ran away instead of being adopted by Mr. and Mrs. Hunter. While fleeing she fell and broke her leg. The unicorn Moonheart could sense her pain all the way in Luster and came to earth to heal her. Mr. Hunter then found both of them and wounded Moonheart before getting knocked unconscious himself. Ivy then went to Luster to find other unicorns to come help Moonheart. And that is the mysterious circumstances of how Ivy first came to Luster.
The Queen has requested that Ivy's granddaughter, Cara, return to earth and bring her back to Luster. Ivy is trapped in the Rainbow Prison when Cara finally finds her. The Queen joins both of them there. The Queen tells them about her long lost granddaughter, Flickerfoot. Flickerfoot was a wanderer and often got into mischief. For her own protection, she was turned into a human. That human is Ivy Morris, the wanderer. The Queen also tells them that Flickerfoot is actually the true heir to the throne of Luster. Ivy then escapes from the Rainbow Prison and returns to Luster. She eventually is changed back to her unicorn form and takes her place as the rightful Queen of Luster.
