[TOMT][comic/webcomic] I read years ago, but can’t remember the name of!

Hello! I am looking for a comic and I’ll try to be as descriptive as possible, but my memory is a bit hazy.

Basically, it was a about a girl (I think British), who is a history/art student that was kidnapped by a man that has long black hair and he was wearing a cape? He took her to another dimension or underworld, which was filled with roots. I believe the story starts with the girl sitting by a university on a patch of grass, and then gets taken.

Sorry if this a bit lackluster, but this is all I got! Thanks in advance