Where is the cherub on poptropica's Haunted House?

The 4 treasures are the Draught, the Ice, the Lantern and the Chalice (goblet).

(there are other items as well : the key and the axe)

To get the Draught, rearrange the pipes in the basement to create a steam geyser at the top of the boiler. The Draught is on the shelf.

To get the Ice, get the pick axe from the knight in the hallway and chip ice cubes from the freezer.

To get the Lantern, synchronize the mantle clocks in the third floor bedroom.

To get the Chalice, use the spider to scare the witch painting, then fly on her broomstick into the attic, and unlock the large chest.

(see related questions)