Harry Potter and the Great Old Ones.

When Harry Potter meets the Cthulhu world.
When scientific thinking collides with magical theories.
when……
P.S.: This story has no romantic pairing or love story.
Friends who like this book can join the group chat 514105437 to exchange writing ideas, or vent about real life and release stress.

Novel keywords: Harry Potter and the Great Old Ones (no pop-ups), Harry Potter and the Great Old Ones full text download, Harry Potter and the Great Old Ones latest chapter reading