The Sons of the Dragon
It centers on the death of Aegon I, known as "Aegon the Conqueror" for his bloody unification of the warring nations of Westeros, and his two sons: Aenys I, who succeeded him, and Maegor I, reviled as "Maegor the Cruel", in their respective successions to the throne thereafter, and the conflicts faced between them.The story concludes with the death of Maegor, and introduces the groundwork for its sequel, being about the life of his successor and nephew Jaehaerys I "the Conciliator", whose 55-year reign brought about an unprecedented age of peace to the Seven Kingdoms.As with his previous Westerosi "histories", including The World of Ice and Fire, The Rogue Prince and The Princess and the Queen, Martin wrote The Sons of the Dragon from the perspective of a fictional Westerosi scholar-physician, referred to in-universe as a "maester".Following an early 2017 leak that revealed plans for the novella to be included in the anthology The Book of Swords (edited by Martin's longtime friend Gardner Dozois), Martin himself confirmed that the anthology was scheduled to be released on October 10, 2017, and confirmed that The Sons of the Dragon would be included.[5] The novella was released by Bantam Spectra in October 2017 in hardcover, paperback and audiobook formats, all as the final story in The Book of Swords anthology.