The Ghostly Goldfish

Once upon a time, there was a small aquarium in a little girl's room. She loved her pet fish, a goldfish named Bubbles, more than anything in the world. One day, while cleaning the tank, the little girl noticed that Bubbles was missing. She searched everywhere, but there was no sign of him.

Days passed, and the little girl began to worry. She couldn't sleep at night, wondering where her dear pet had gone. One day, while playing in the yard, the little girl saw something shiny in the grass. It was Bubbles, but he was dead. 

The little girl was heartbroken. She buried him in the backyard with a small ceremony, complete with a eulogy and tears. She missed him terribly, but life went on.

However, strange things began to happen in the little girl's room. She heard splashing noises and a voice whispering to her at night, and her blankets would move on their own. The little girl was terrified and didn't know what to do.

One day, while visiting her friend, the little girl told her about the strange happenings. Her friend listened carefully and asked, "Did you check the aquarium filter?"

The little girl was confused. "What does that have to do with anything?"

"Well," her friend replied, "if the filter isn't cleaned regularly, it can release methane gas, which can cause hallucinations."

The little girl ran home and checked the filter. To her surprise, it was completely clogged with Bubbles' remains. She cleaned the filter and went to bed that night feeling relieved.

But as she was drifting off to sleep, she heard a voice in her head. "Thanks for releasing me from that filter, kid. You're alright."

The little girl jumped up in bed, startled. She realized that Bubbles had been talking to her all along, and they both started laughing hysterically.

From that day on, the little girl knew that Bubbles was still with her, even in death. And whenever she felt scared, she could always hear his voice in her head, telling her a joke or making her laugh.