Beth finds herself lost in the fog while looking for her troublesome dog, Sadie - who had run off hours before during their daily walk in Savernake Forest. Now it was dark and Beth finds more than just Sadie in the haunted forest. Chased down by the legendary headless horsewoman and a trip back 300 years in time.
Can Beth and Sadie return home to their own time, while also helping their new friend escape a murderous plot?