A few weeks ago, it was revealed that Harry Potter author J.K. Rowling will debut three new short story collections that fans will be able to pick up on September 6. Since then, the author has been sneaking in a number of original sketches she drew while writing the Harry Potter saga, into various pages on the Pottermore site. We have all of these images for you in one place, which include beloved characters such as Harry Potter himself, Severus Snape, The Weasleys and much more.

Time managed to round up all of these new images, featuring Harry Potter gazing into the Mirror of Erised, Professor Minerva McGonagall scolding Peeves as a number of students look on, Severus Snape teaching a potions class, a Quidditch game and Hagrid holding what appears to be Harry Potter as a baby. Some of these images are part of stories written by J.K. Rowling herself, including one about a potions class and another that follows Harry Potter's family tree.

The potions story confirms that a muggle could not concoct a potion by simply following the directions in a potions book, since there is always an "element of wand work," with J.K. Rowling revealing that Snape "conforms perfectly" to the stereotypical description of a potions professor, with his "brooding, slow-burning personality." The story about Harry Potter's ancestors reveals that his family was not chosen as part of the "Sacred Twenty-Eight," a list of pure-blood magic families, because Potter is a common muggle surname, and because the family often spoke out on behalf of muggles.

Related: 4 New Harry Potter History of Magic Books Are Coming from J.K. Rowling

With the short story collection eBooks arriving on September 6, it's possible that we may get even more of these sketches before they debut, and these eBooks themselves may feature even more sketches. Hogwarts: An Incomplete and Unreliable Guide delves into Hogwarts mysteries pertaining to the sorting hat and Hogwarts ghosts, while Short Stories from Hogwarts of Power, Political and Pesky Poltergeists explores the dark side of the wizarding world, and includes an original piece of writing by J.K. Rowling on Horace Slughorn.

The final collection entitled Hogwarts of Heroism, Hardship and Dangerous Hobbies delves into the Hogwarts staff, including a brand new piece from J.K. Rowling on Minerva McGonagall, and how she became involved in the second wizarding war. This final collection also includes the author's thoughts on Professor Umbridge. Take a look at these original sketches from J.K. Rowling, which she drew while writing the beloved Harry Potter saga.

Harry Potter Sketch 1

Harry Potter Sketch 2

Harry Potter Sketch 3

Harry Potter Sketch 4

Harry Potter Sketch 5

Harry Potter Sketch 6

Harry Potter Sketch 7