in the museum
If you mean spook central, then that answer can be found in your items unde ghost story, in files that you will/have revcieve/received after talking to the ghost hunter. It's Skullduggery, Shrink Ray, Steamworks, Wild West, and 24 Carrot.
She's in Wild West Island in the bar.
It is in Trade and Bargain Shop.
its in the museum on mainstreet of steamworks island :)
You go to Steamworks and head to the museum and there is the Deogen
The ghost is by the school on Main Street. You can catch him by the right side of the banner announcing the Science Fair.
There are no ghost on steam work island
The ghost is on Main Street by the school. Catch him as he passes the right side of the Science Fair banner.
go to on mainstreet in shrink ray island walk to the school entrance and he will be right there
The ghost runs up past the tower and telescope, and down near the tavern (multiplayer room). You can jump and catch it there.
It is on Main Street in Fort Ridley. You can see it if you climb to the roof, then capture when it comes down in front of the multiplayer room (tavern). Only paid monthly members could complete Spook Central.
There was no demo. There was a game called "Spook Central" that featured a hunt for ghosts on 5 other islands. It was discontinued when the island was released. (see related question)