Editing Spookyfish (section)

===Description===
It's Halloween and [[Cartman]] is acting weird. Sometimes he's his regular obnoxious self, endlessly saying the word "hella". Other times he shows such un-Cartman-like traits as compassion and consideration for others. 

Meanwhile, [[Stan]]'s mother [[Sharon Marsh]] tells him that her Aunt [[Flo Kimble]] who visits each month has given him a fish as a present. In reality, the fish murders people at night. Sharon, convinced Stan is the killer, dutifully buries the bodies to cover her son's tracks. She even kidnaps [[Officer Barbrady]] when he comes snooping around and locks him in the basement. The fish also kills Aunt Flo and of course Kenny.

The boys discover that Cartman is actually two separate people. The "good" Cartman is from an evil parallel universe, as is the pet fish. They promptly return Stan's fish to the Ancient Indian Burial Ground Pet Store where the portal between worlds reside. They learn that nine other evil pets have already been returned.

After they leave, doppelgangers of Stan and [[Kyle]] cross over from the evil universe. They release the evil pets which go on a killing spree. They also ally themselves with the Cartman from this world and go gunning after Stan, Kyle and good Cartman. After a vicious struggle the evil Stan and Kyle are vanquished back to their own world using a "gingerfication gun".

Stan and Kyle want to send their Cartman back to the evil parallel universe and keep the good Cartman. However, the two boys lose track of who is who and don't know who to blast. One of the Cartmans says they should shoot both Cartmans just to be sure. Figuring only doppelganger Cartman would be capable of such altruism, they zap the other one instead. Stan and Kyle are stuck with their Cartman, who figured the two would fall for such a lame ruse.