In 2040, Roxie, Ben, Thia and Cate’s children return to Harridge House to search for Issy, Drew and Cate’s ghost. They discover and witness first hand the ”pocket realities” the Harridge siblings have been living in for the past 18-years. As time runs out, they return to the Harridge Mine, where Linda has been imprisoned for 18-years. Elsewhere, Azhgoth continues wreaking havoc around the world. How will it all end? Who will survive the explosive ending to the Harridge saga?