Which school did Edin Blyton go to?

There seems to be some confusion. You're likely thinking of Enid Blyton, the famous author of children's books. She did not attend a specific school that we know of.

Blyton was homeschooled for most of her life. She did attend a school for a brief period as a teenager, but the specific school's name isn't publicly available.

It's possible that this information is not publicly available, or it could be that she attended a school that is no longer in existence.