Instructions
Play through ̶0;Epic Mickey̶1; until you reach the Lonesome Manor area. This is the sixth main area in the game.
Complete the initial phases of Lonesome Manor. Eventually you will gain access to Manor House.
Work your way to the Manor House front gate, where you will watch a quick cut-scene with the Mad Doctor.
Run up the stairs to Manor House̵7;s front door. Spray thinner on the tops of the columns to the right and then jump from column to column to find a hidden ledge.
Spray thinner on the right-hand wall and you̵7;ll reveal a hidden alcove with a balcony. Use your thinner on the wall to the left of the door on the balcony and you will find another hidden area.
Free the gremlin in the hidden area with a spin attack and he will reward you with the anvil sketch.
Bash slobbers with the anvil sketch when they try to inhale you. This is the only time they are vulnerable to attack.