Byron's daughters, Eryn and Lyra, princesses of the De Danann are coming of age. However the goals of their Steward, Odaro, and Uncle, Lord Adam, to have them reestablish the line of kings is threatened by unnatural events growing in frequency and power. To prevent the strange happenings from building and destroying the very world itself they must enter the lands of the wolf-riding Haruka, known as the Twisted Ones, and find the Immortafice, one of the fabled vents tied to the five pieces of the Ard-Ullem which emit mystic gasses from the creation lodestone itself. Immortafice, the third volume of The Advent of the Ard-Ullem introduces the next generation of characters and propels the reader into another thrilling adventure in this riveting fantasy adventure series.