That is the question!
I intended for A Crack in the Rock to be a prequel to The Edge of the Sword Series. However, Amazon does not currently support prequels. You cannot have a book numbered less than one in a series (0, 0.5). So, even though there is a thirteen year gap between the end of A Crack in the Rock and The Warrior Prince of Berush, in order to keep them all part of the same series, I had to renumber all the books to make the prequel the new number one. I hope this change will not be confusing!
Thank you for reading!
Amber