Wilhelmina Thornton's world turned upside down in less than a minute. That's how long it took her father to tell her that she would be spending her entire summer with her great-aunt Agatha at Merrycliff, an old house in the little mountain town of Three Springs.

"Dad, how can you do this to me? I'll be bored out of my wits!"

How wrong she was! The summer turned out to be the best one ever! Full of surprises, secrets, intriguing twists and unexpected turns.