Silli Page had been promised a hypnotic return to Shadow Falls. And when the Englishman hesitates, she begins to “will” herself into the Lucid Transworld to find what the Guardians guide on Shadow Falls. She finds there is only one way to get the answer. She is to find Mistress Eva; the Evanescent Mistress of the Evening in Shadow Falls, a task, she is warned, extremely and highly difficult as Mistress Eva often assumes presence and vanishes. When found, Mistress Eva can bring her back to her world where she will discover what the Guardians guide on Shadow Falls.
Her hopes take her one differing journey after another to find a different case every time she revisits Shadow Falls. But she is determined to find the Vanishing Evanescent Mistress because if she can solve the case of the Vanishing Mistress, she can solve a case in any Lucid Transworld.