The Seven Sisters series is heart-wrenching, uplifting and utterly captivating. -- Lucy Foley

After the family's lawyer makes a surprising announcement that he believes he has found their missing sister, Maia and Ally discover that their only clues are the address of a New Zealand winery and a drawing of an unusual star-shaped emerald ring. Since CeCe, who lives in Australia, is the closest, she is sent to investigate. And so begins a cross-country race against time to find the seventh sister before they gather on Titan for the anniversary of Pa Salt's death...