George R.R. Martin has voiced strong criticism of HBO's adaptation of his book 'Fire & Blood' in House of the Dragon's second season, particularly regarding the omission of a character named Maelor. In a now-deleted blog post titled 'Beware the Butterflies,' Martin detailed how this change impacts the 'Blood and Cheese' storyline, arguing that it diminishes the emotional and narrative depth of the scene. Martin warned that such alterations could create a 'butterfly effect,' weakening future plotlines in seasons 3 and 4. HBO responded, emphasizing the creative team's respect for Martin's work while defending the necessity of adapting the story to fit the medium's constraints. Fans are divided, with some agreeing with Martin's criticisms and others finding the show's adaptations effective.