Mum is going to Cornwall; Dad is at a conference in Brussels, what will George do? There is no one to look after him but then his mum thinks of his dad’s aunt who only visited once when he was little but she remembers him as a plump old lady able to change colour. She seemed quite friendly. When George stays with his Aunt Primrose during the holidays, certain doubts start to creep into his mind. She keeps things in the cellar and George could swear he saw her early in the morning before the tide came in and she went into the sea and didn’t come out for about 5 minutes! What is going on? Find out in this book. I would rate this book 8/ 10 because it is good but bits could be improved and would recommend it to adventure loving 8 – 12 year olds, mainly boys.