Tizzie is lonely when she and her mum move to Roven Mere, a mysterious, rambling mansion deep in the countryside. She''s eager to meet Lord Rupert and his daughter, Greta, but no one knows when they will come home. The house seems like a museum, and as Tizzie explores the rooms and passageways, she makes a startling discovery about why she''s been brought to Roven Mere...