Amy Anderson is an eleven-year-old girl who loved to stay home. When she finds out that she and her family will transfer to a new home in a land called Dandasterton, she bursts out into tears and begs her father that she stay. Little did she know that moving to that land would make her meet four new friends, Hillary, Ilisha, Fiona, and Tracy. A mystery to be solved waits for them in Dandasterton. A mystery of a blue diamond.