The Hole inside the Earth is an epic series of books that describes the mythology behind the Ordo Lupus and the Blood Moon series, as well as the War for Iron: Element of Civilization series.

Find out more about Rip: Grail of the Secret Sun, which is Part 1 of The Hole Inside the Earth series and features vampires as well as Atlantis and the Holy Grail, on its dedicated page on this site.

Buy Volume 1, Grail of the Secret Sun, on Amazon.

Take a sneak preview of maps of Llantu here.