Goldfish from Beyond the Grave #4

What happens when a beloved pet refuses to go through to the other side? The protector of undead pets may be a fish out of water this time. Just when Joe thought things couldn't get any stranger, he is visited by Fizz, a zombie goldfish. Fizz was flushed down the toilet by his owner Danny's little sister, who doesn't realize that she's sent the fish to a watery grave. Fizz needs to ensure the truth is revealed before his fellow fish meet a similar fate. But how do you get a goldfish to rest in peace?