Nessa hates her full name - Agnes - which she inherited from her great-great-grandmother...but is that ALL she inherited? Because rumour had it that Great-great-granny Agnes was a witch, and a few unusual things have been happening to Nessa recently. First, there's the strange book she finds in her local coffee shop, and then the invite from her next-door neighbour Ewan Grainger to accompany him on a rather supernatural research trip. What ensues is a Halloween journey through Scotland in a yellow camper van, with just a touch of magic!