As there are several treasure chests on Poptropica, the answer would require you to specify an island.
The Time Capsule on Big Nate Island
Once you have the map from Seal Island, use the peanut butter crackers to get Spitsy to dig a hole. Pull the Time Capsule up slightly and press the clasp to open it.
The Inspector's Chest on Counterfeit Island
There is no way to open it. It is just a distraction.
The Attic Chest in the Haunted House
Unlock the skull lock by reversing the changes made. The chalice is inside.
(see related questions)
Catch the flying bat to get the key. The lock on the basement door is now open (left side).
The thief is a professional at picking locks. If you look around his cabin you can find lock pickers.
Is the Metz hill haunted house open this year. 2012
when hallo ween opens
You find the skeleton key
The Haunted House is in the Poptropica store. Select the card there, then open it from your item bag, where it is under "Store Items." *The haunted house on Ghost Story Island is to the right of the Inn.
To open the door to the basement on Haunted House in Poptropica, you first must get the key which the bat is flying around with. Then use it to unlock the padlock and onpen the door!
Yess, the Grimm haunted house in Kissimme old town.
they already did on October 2010
It is where you enter the house. Catch the bat with the key and the basement door to the left of the house will be open.
When the doors swing open unexpectedly in a haunted house, it can create a sense of fear and surprise for those inside. It may also add to the spooky atmosphere and make people feel like they are not alone in the house.
You could find these in a haunted house! Or if your house is haunted!