Eleven-year-old Lonasei is lonely - she wishes her older sister Eva Grace wasn't so mean, and that her mum Aria didn't have to work so much. But when Aria inherits her childhood home, Lonasei discovers she can enter her late Aunt Malia's paintings and experience the memories within. Through them, she discovers that her mother had another sister, Agnes, who went missing as a child. Lonasei's questions about the lost aunt she never knew existed leads her to explore the basement at Origin Grove, where she discovers a whole new world of possibility, and a chance to steal precious moments from the life that could have been.