Magical Theory

Magical Theory written by Adalbert Waffling is a required textbook for first year at Hogwarts.^[1] It is available at the Hogwarts Library, or for sale at Flourish and Blotts bookstore for two Galleons.^[2]

Known Contents

In a chapter speaking of the first fundamental law of magic:

Tamper with the deepest mysteries ⁠— the source of life, the essence of self - only if prepared for consequences of the most extreme and dangerous kind.

History

During the 1991-1992 school year, a Gryffindor student lost her/his copy of Magical Theory on the Hogwarts grounds and posted a notice requesting its return on the Gryffindor pasteboard. Harry Potter found it near Hagrid's Hut and returned it to the student, receiving a Chocolate Frog Card depicting Mopsus for his trouble.^[3]

Hermione Granger owned it, usually storing it in her school trunk.

Behind the scenes

• In the first film, the book´s cover is red. In the video game, it is greenish yellow. In Pottermore, it is blueish-grey.
• At Durmstrang Institute Магичен Теория is a required textbook. Магичен Теория is an incorrect Bulgarian translation of Magical Theory. Durmstrang students could be seen carrying this book during the Triwizard Tournament in the 1994–1995 school year.

Appearances

• Harry Potter and the Philosopher's Stone (First appearance)
• Harry Potter and the Philosopher's Stone (film)
• Harry Potter and the Philosopher's Stone (video game) (PS2 version)
• Pottermore

Notes and references