This companion to Castle in the Mist features a mysterious carnival, an ominous psychic, and a wind that whisks Tess and Max away from their vacation in South Devon, England. Which fantastical world will they find this time? Tess and Max are back in England for another summer with their Aunt Evie-this time by the seashore in South Devon. And they're incredibly excited about the travelling carnival that's come to town.

There are rides, games, acrobats, The House of Mirrors-and even a psychic, with a beautiful wagon all her own. In a visit to the psychic's wagon, while Tess is being hypnotized, the wagon seems to move. Before Tess can shake herself out of the hypnosis, before Max can do anything, they seem to be travelling-along with the rest of the carnival-too quickly for the two of them to jump out. But where are they going and what awaits them? Will they be caught in a world different from their own? And do the Baranova twins, acrobats who miss their sister almost as much as Tess and Max miss their family, hold the keys to the mystery?