Fern and her brothers and sisters are on a visit to meet their grandparents, Grandmarr and Grandparr, who live beneath a huge old castle! When Grandmarr tells the young rabbits a story about a beautiful lost pendant in the shape of a hare, Fern can't resist going to look for it. With the help of her sister Wisher's unusual talents, can Fern solve the mystery of the pendant's disappearance? Heartwarming and hilarious, with Anna Currey's charming illustrations, this is a brilliant animal adventure series from a bestselling children's author.