Town
Go into the second door on the right to enter the alchemist's shop.
Alchemist's Shop
Click Elem the Weathermage to speak with him.
Talk to CourSid the Alchemist.
Click the toolbox on the ground to the left of the counter to receive the Carving Knife.
Go back to town, then go through the first door on the right into the tavern.
Tavern
Click Lady Marian Windlethorpe to speak with her.
Go back to the town, then go into the first building on the left into the Elder's home.
Elder's Home
Click the Elder to speak with him.
Exit the building, then follow the path to the left to reach the outside Ettlethorne's house.
Ettlethorne's House.
Take the Pumpkin on the corner of the porch.
Go inside and speak with Ettlethorne.
Exit the building, continue left to the outside of Cameron's house, then move forward towards the well at the rear of the house.
Cameron's House
Click Elem the Weathermage to speak with him again.
Go back to the alchemist's shop.
Alchemist's Shop
Speak with CourSid the Alchemist again to learn the ingredients to the sobering potion: Tonic, a Sparrow's Egg, a Dead Cricket, and a Black Mushroom.
Go back to the tavern.
Tavern
Click the shelves of bottles behind the counter to take the Tonic.
Return to the outside of Ettlethorne's house.
Ettlethorne's House
Click the bush of reeds behind the stone steps of the porch to find the Sparrow's Egg.
Go left to Cameron's house.
Cameron's House
Click the bush to the left of the door and underneath the window to find the Black Mushroom.
Go through the door to enter the house.
Click the mantle above the right side of the fireplace to find the Warding Candle
Go up the stairs into the bedroom
Click the drawer of the writing desk to find the Hammer.
Click the diary on the desk to read it, note that it mentions a cricket under the bed.
Click the bottom of the bed to zoom in and take the Dead Cricket.
Go back to the alchemist's shop.
Alchemist's Shop
Click CourSid to give him all of the ingredients from your inventory, then speak with him to receive the Sobering Potion.
Go back to the weathermage behind Cameron's house.
Cameron's House
Give Elem the Weathermage the Sobering Potion from your inventory.
Speak with Elem in order to lift the fog.
Use the Knife to cut the Pumpkin.
Put the Warding Candle inside the carved Pumpkin to complete the Jack-O'-Lantern.
Go back to the outside of Ettlethorne's house, then go straight ahead into the forest
Forest
Use the Hammer from your inventory on the two nails sticking out of the left and right tree.
Click the demon to speak with it
YOU WIN!