Tumbleglass

＂Thirteen-year-old Rowan is helping her older sister Ash paint her bedroom when she discovers a mysterious ring that transports them both back in time to 1999. To a party being held in the very same house! While Ash dances, Rowan unwittingly disrupts the laws of time, and when she wakes up back in the present day, her sister is missing and even worse, everyone in their family seems to be forgetting she ever existed. With the help of her magical neighbour Verity, Rowan must find the courage to travel back through the history of the house. But can she find everything she needs to rescue Ash before her sister disappears forever?＂--Back cover

Kate Constable was born in Melbourne but spent much of her childhood in Papua New Guinea, without television but within reach of a library where she ’inhaled’ stories. She studied Arts/Law at the University of Melbourne before working for a record company while she began her life as a writer. Kate had stories published in Meanjin, Island and other literary magazines before realising she was actually a children’s and YA author. Kate has written eleven novels for young people, including the internationally-published Chanters of Tremaris series and the CBCA award-winning Crow Country. Kate lives in a northern suburb of Melbourne with her family, a bearded dragon and a dog.