Mueller's Comprehensive Book of Potions

 - This book contains a wide variety of potions, both magical and mundane.

(Magical potion requires the use of a spell or incantation to either activate or strengthen the potion. - A Mundane potion works alone, with no magical powers required of the wizard. - Many consider mundane potions to be non-magical.)

- Contains entries from some of the finest potion masters and potion collectors throughout history.

- To have your potion added to this collection is considered very high praise indeed.

- Book is widely used by the Wizarding World and by many in the Witching Community. - Witches tend to vary the incantations slightly in order to achieve a specific result. This is considered gray magic and is frowned on by most wizards and witches.

- Mueller was neither a wizard or a sorcerer, but an academic. For years he gathered various potions as a hobby. After he had collected several hundred potions, he decided to record them in a single text. By the time he completed the Book of Potions he had gathered more than three thousand potions. Mueller also included an index of ingredients used in the potions. The master index of ingredients listed some forty thousand items. These range from a mouse toe to the root of a crucible tree. 

- Mueller, and his entire family, were harrassed by representatives and followrs of the Cloaken Monks. He was eventually forced to abandon his search for additional potions and secretly published this text. As a result, he was shunned and lost his entire fortune. He died a poor and broken man. Now, centuries later, his Book of Potions is regarded as a masterpiece. It is overseen by the Muller Society who is in charge of adding any new potions to the text. 

- An original copy of the Mueller Book of Potions is on display in the Lady Catherine Library.