Fire and Blood' is more than just the words of House Targaryen Credit: hbo George R. R. Martin's new Targaryen history book, Fire and Blood, predates the characters from Game of Thrones by 300 years.
Fire & Blood is not a full breakdown of Targaryen history, but it is a complete story – especially the Dance of the Dragons, which'll be the main focus of House of the Dragon's last two seasons.