Theory: What The "Toxic" House Of The Dragon Season 3 & 4 Changes GRRM Warned Of Are
House of the Dragon Warning : Contains SPOILERS for Fire & Blood , the book on which House of the Dragon is based . George R.R. Martin mentionedHouse of the Dragonseasons 3 and 4 make modification to his book , Fire & Blood , that would result in a"toxic"butterfly effect on the tale , but what was he referring to ? Martin wrote a now - delete Wiley Post on hisNot A Blogpage detailing several issues he had with HBO ’s adaption of his House Targaryen history book , pore around change to stemma and Cheese and , specifically , the omission of Maelor , the third tike of King Aegon II Targaryen and Queen Helaena Targaryen ....