Also known as the "Tale of the Five", this high fantasy series was paused in 1992. The books center on some of the same themes as her better-known Young Wizards series; those who wield the Blue Fire have many of the same responsibilities as the wizards and fight the same battle against entropy. In "So You Want to Be a Wizard", Nita's wizardry manual is written by "Hearnssen", a reference to the protagonist of "The Door Into Fire", Herewiss s'Hearn (son of Hearn), so it may be that the Middle Kingdoms are part of the same sheaf of universes as the Young Wizards setting. Adding to this, one interdimensional portal in "The Door into Fire" appears to open over New York City. Duane is working on the final volume. "The Door into Fire" and "The Door into Shadow" have an omnibus reprint called "Tale of Five: The Sword and the Dragon." ()