George RR Martin has been working on the penultimate Game of Thrones book The Winds of Winter for the last 13 years.

Over the past week, the 75-year-old has been more active than usual on his blog, mentioning the upcoming novel in passing.

His most recent post focuses on the dragons as portrayed in A Song of Ice and Fire.

During the essay, the author shared what plot details he plans to reveal in The Winds of Winter and final book, A Dream of Spring.

Martin wrote on his blog: “My dragons do…