The fourth installment of a sweet and funny series about a young girl and her magical wolfish best friendLibby is furious that Veronika wants to sell their family home - but that doesn't seem so important when Veronika washes Libby's best friend Wulfie down the drain with a power hose!Scared and alone, a tiny Wulfie tries to get home through the pipes, producing strange noises inside the walls of the house... Veronika, thinking the house is haunted, invites a TV crew to investigate.

If the house becomes famous, Veronika won't want to sellit - but what if the camera crew discover the 'ghost' is actually a shape-shifting wulfen? Can Libby and Wulfie keep their secret and save her home? Well, with a best friend like Wulfie, anything is possible!