Warlock's Room
Talk to the Warlock, then through the door on the far right. Pull the chain,
then enter the door that just opened buy going back the way you came and quickly
running through it before it closes. You'll be at the top left of the screen.
Touch the wall to the north. It'll start to shake, so stand in the doorway
or it will squash you. Open the door that has been revealed.
Brigand Leader's Room
When you have a chance, throw the dispel potion at the leader. Grab the mirror
from the desk and search the desk quickly. Exit through a gap in the treasure
on the right side of the screen.
Baba Yaga: Giving her what she deserves
Go back to good 'ol Baba Yaga. When she casts a spell at you, use the magic
mirror.
Endgame
Go back to the Baron's Castle. Congratulations! You've become a hero!