Another day at Pottermore finds another new bit of writing from Harry Potter author J.K. Rowling. This time it’s about vampires.

In a new section on the supernatural creatures, Rowling says that vampires never played a role in her story because she felt that “there was little [she] could add to the tradition.”

However, while in the early stages of planning the Harry Potter series, Rowling says she came up with a vampire character.

“Looking back through my earliest notebooks,” she wrote on Pottermore, “I found that on my very earliest list of staff, there was a subjectless vampire teacher I had forgotten, called ‘Trocar’. A Trocar is [a] sharply pointed shaft inserted into arteries or cavities to extract bodily fluids, so I think it a rather good name for a vampire. Evidently I did not think much of him as a character, though, because he disappears fairly early on in my notes.”

Rowling also confirmed that Professor Snape, long rumored to be a vampire in part because of his physical look, is not a bloodsucker (literally speaking):

“While it is true that he has an unhealthy pallor, and is sometimes described as looking like a large bat in his long black cloak, he never actually turns into a bat, we meet him outside the castle by daylight, and no corpses with puncture marks in their necks ever turn up at Hogwarts. In short, Snape is not a re-vamped Trocar.”

Rowling has been on a tear with Potter tidbits as of late. Last night she answered fan questions about the religions of Hogwarts students on Twitter, and earlier this week she explained why Snape is a potions professor. She also revealed a ghost plot concerning Florean Fortescue. At one point, Rowling says, the character was supposed to be an important player in Deathly Hallows.