5

The author answered this question by saying that you need to have seen death and fully comprehended it in order to see Thestrals. From a 2003 interview with Stephen Fry, in which the latter read out questions from fans (transcript at Accio Quote): Stephen Fry: Internet question from Jessica Wells, originally from Australia now living in London. Email: “...


4

Some consideration should be given to the possibility that Rowling made it up as she went along: that is, she didn’t think of using the Thestrals to pull the carriages, and didn’t come up with the ad-hoc explanation that seeing death allows you to see the Thestrals, until she was writing Order of the Phoenix. The game of “how can we make the new idea ...


2

I would like to present a different analysis of most of the same facts mentioned in the other answers. While I am normally skeptical of post facto authorial statements, especially with this author, in this case I think it is reasonable to accept that it is not an invention that was conceived after the story was completed. Let's begin with the three points of ...


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