There are two ways to get hold of Troll Bogeys in Hogwarts Legacy:
- Defeating Trolls in their lairs and looting them afterward
- Purchasing them from J. Pippins Potions store in Hogsmeade
These rare ingredients will be necessary when it comes to crafting invisibility potions or completing Professor Onai’s Assignment to learn the Descendo spell.
However, the Professor’s task doesn’t lead you right to a Troll Bogey location in Hogwarts Legacy. You’ll need to find one yourself.
Here’s where to get your hands on one:
Where to Buy a Troll Bogey in Hogwarts Legacy
To purchase a Troll Bogey, players need to head to Hogsmeade and enter J. Pippins Potions store. The vendor will charge 100 Galleons per Troll Bogey, so they don’t come cheap.
Thankfully, Hogwarts Legacy’s fastest money-making trick will have you earning thousands of Galleons in no time.

Read More: Can You Be Evil in Hogwarts Legacy?
How to Find Troll Bogeys in Hogwarts Legacy
Troll Bogeys are dropped as loot when a player defeats a Troll in Hogwarts Legacy. These creatures can be found almost exclusively in their lairs, shown below:
One of the first Troll Lairs you can come across in Hogwarts Legacy is just northwest of Hogsmeade, on the map shown below:

Another Troll Lair can be found slightly west of Feldcroft and Rookwood Castle, though there are more than a few other locations to discover.

Attack and successfully defeat the Troll in its lair. Once defeated, you can interact with a bag of loot near its body. Collect the loot to get approximately 3 Troll Bogeys!

Now take that Troll Bogey back to Professor Onai, and you’ll be able to learn Descendo! Speaking of spells, check out how to get and upgrade Alohomora to access Hogwarts Legacy’s best secret areas!
Or check out EVERY spell you can cast in Hogwarts Legacy here.