Venomous Valour is one of the tricky side quests featured in Hogwarts Legacy, requiring a couple of spells to complete. During the Venomous Valour quest, youβll help a fellow student named Duncan Hobhouse bring something from a dangerous place named Hidden Herbology Corridor.
With that evidence, he will make his colleagues believe heβs not a coward, even though he got scared by a little Puffskein. To start the Venomous Valour Side Quest, youβll have to progress the story and complete Professor Hecatβs Assignment 1, where you will learn a new spell named Incedio.
Then, pull out the map, select The Astronomy Wing black flag, move your cursor over the side quest, and press (X)/(A) to track it. Follow the route on the minimap leading to Duncan Hobhouse in the Defence Against the Dark Arts Tower area.

Speak with him to start the Venomous Valour Side Quest.
How To Enter the Hidden Herbology Corridor
After youβre done talking, follow the quest marker and the route on the minimap leading outside Hogwarts Castle into Hogwarts Grounds. Follow the route through Hogwarts Grounds until you reach the Glumbumble Nests containing a Field Guide Page. Head down the stairs east of the Glumbumble Nests and check the left side for a door covered in vines leading to the Hidden Herbology Corridor. To clear the vines, use the spell Incedio you learned during Professor Hecatβs Assignment 1.

How To Obtain Proof for Duncan
After you enter the Hidden Herbology Corridor, youβll notice that the whole place is infested with Devilβs Snare. To clear the Devilβs Snare from your path, cast the spell Lumos. Keep in mind that this is a temporary effect. They will grow back once you turn off the light.

Keep going through the Hidden Herbology Corridor until you reach some debris in front of you and a doorway on the left. Behind the debris, there is a chest containing a piece of gear. Weβve also marked its location in the image below. Destroy the debris using Incedio, cast Lumos to clear the Devilβs Snare, and safely cross the water to open the chest.

After you open the chest, follow the quest marker leading to the Giant Venomous Tentacula Leaf and collect it.

With the Giant Venomous Tentacula Leaf in your inventory, climb the nearby ladder to the Greenhouses and follow the route on the minimap leading back to Duncan. Speak with him and give him the Giant Venomous Tentacula Leaf to complete the Venomous Valour Side Quest and receive Venomous Tentacula Robe Gear Appearance and 180 XP.