Volubilis Potion

"Volubilis Potion is one of my favourites! Some people just use it to play tricks on others to change their voices... which seems a waste of a good potion to me."

- Potions Club girl

Volubilis Potion is a potion that changes the drinker's voice. To brew to potion, one has to warm it until it turns red, then green. Next, the potion-maker has to add Honeywater untill the liquid turns pink. The brew has to be warmed again, this time until it turns orange. When mint sprigs are added, the potion turns into a shade of green. The potion has to be warmed yet again, untill it turns blue. Then, more mint sprigs are to be added. By this time the potion should be pink-coloured. Stewed Mandrake is to be added next, to which the potion turns orange. A small amount of Syrup of Hellebore sould be added next, turning the potion blue. To finish the brew, one has to warm the potion until it's red and warm some more untill it turns a pleasant yellow. Once finished, the potion should release some sparks.

Appearances
Harry Potter and the Half-Blood Prince (video game)