Black Knights Fortress (located at the ice mountain, a bit west of Monastery)
You'll notice the front door is locked, and the guards won't let you in the side door. Why? You don't look like them. To get in u need a Guards uniform, Medium Bronze Helmet and Iron Chainmail.
Hint 2: *Go through the "odd looking wall" which is at the north Wall when u get in, go up the ladder.
U see a "Grill" and u can choose listen by left clicking it, u will see the Black Knight
Goblin, and the witch will start to speak to each other. It's an invincibility potion they're making, and it needs a
cabbage from Draynor Manor to be complete. Any other cabbage will destroy the potion.
Hint 3: *Go back down the ladder, you see a room next to you with 3 Black knights, go in
there, the Guards says you shouldn't go in there, because the black knights are going attack you.
*When u get in there, 1 Black Knight will attack you, but just run from the fight or kill the Black Knight if u
can.
*If u press the other door in the room, a Black Knight will attack u, so make sure all Black Knight are busy if u
want to go through the door, (good to get friends with u attacking the Black Knight's).
Hint 4: *Go upstairs, climb the ladder, at the north wall is a "odd looking wall". go through it and
"use cabbage with hole"
If you made it correct u will say "that must have ruined the secret weapon" or something like
that.