first take them to the ghost cat then to the statue outside
You must find and recover the four "treasures" in the Haunted House and bring them to the gathering of ghouls. Once you have the treasures, the ghost cat (right of the kitchen) will tell you where to take them. (see related question)
To leave the house, get the four treasures, fuel the lantern with kerosene, and talk to the ghost cat. The cat will tell you where to take the treasures. To get out of the Haunted House game, you go into the opened grave at the far right, the one that you entered the game through.
Once you get the kerosene for the lantern, the ghost cat will tell you to take the treasures to "the crying cherub", which is the statue of the crying girl in the graveyard. There is a new hole near the tombstone.
Once you have all four treasures, the ghost cat will tell you where to take them. (You are going back to the graveyard near the quest entrance.)
You need all 4 treasures (and fuel for the lantern, in the basement) before the ghost cat will tell you where to take them. There should be a new hole next to the tombstone of Betsy Blue in the graveyard (the crying angel).
There are four treasures you have to bring :The Draught,The IceThe LanternThe Chalice (goblet)See the ghost cat (to the right of the kitchen) to see if you are ready to take the treasures to the graveyard.(see related question)
You don't have to mix them. Collect all four "treasures" from the house and then ask the ghost cat (right of the kitchen) where to take them. (see related question)
Collect the four treasures, and fill the Lantern with kerosene in the basement, and the ghost cat will direct you to the ghouls in the graveyard. (see related question)
Talk to the ghost cat (in the room to the right of the kitchen) for information. This is the final stage of the game, in which you take the 4 treasures (chalice, lantern, ice, and draught) to their destination. (see related question)
The ghost cat tells you to take the 4 treasures to "where the cherub cries", which refers to the statue of the crying girl in the graveyard. You should find a hole just to the right of the tombstone.
Fill the lantern with kerosene in the basement, then talk to the ghost cat in the room to the right of the kitchen. He will tell you to take them to "where the cherub cries", which is the crying girl statue in the graveyard.
The lantern is one of the four treasures (along with the "draught of the dead", some ice, and a chalice). Get all 4, and fill the lantern with kerosene in the basement. Then the ghost cat will tell you where to take the items.