The reason why The Secret History is so good is because it isn't trying to be anything. Sure, when reading we can feel Tartt's inspirations; we can see the influence of Dickens and the writers and philosophers of Ancient Greece, but that is natural as everyone gets inspiration from somewhere.
I think a lot of people forget that "dark academia", while visually appealing, to be sure, is not a formally define literary genre - it is an internet aesthetic that I believe started on this platform. 19 year old Donna Tartt did not sit down in like 1983 to write a "dark academia" novel, people online gave it that label many years later. The novel is concerned with aesthetics, but Tartt had no concept of "dark academia" when writing it. I've seen people on BookTok talk about how they felt disappointed that the novel isn't dark academia enough, and I just think, but it isn't dark academia because "dark academia" was created around The Secret History, The Secret History was not created around "dark academia".
I think that's why I dislike it when novels that are published today are marketed using internet aesthetics and tropes, because it creates the impression that the writer is trying too hard to fit into a certain box, that they are ticking off boxes, rather than writing something that feels natural.











