As Ranjana tried to process what the ghost had just told her, she suddenly found herself waking up in her bed. She quickly got up and looked around, feeling disoriented and confused. Was it all just a dream? Ranjana thought to herself. She couldn't shake off the feeling that it was more than just a dream. She decided to take the ghost's words seriously and do something about it.

Ranjana spent the next few days researching everything she could find about the end of the world. She read scientific reports, religious texts, and even conspiracy theories. But no matter how much she read, she couldn't find a definitive answer. One day, as she was walking to her local library, she heard a voice calling her name. She turned around and saw the same ghost from her dream. This time, the ghost appeared more real than ever before.

"Ranjana, you have to trust me," the ghost said. "I am here to help you save the world."

Ranjana didn't know what to do. She was afraid and skeptical about the ghost's intentions. But something about the ghost's words made her feel like she had to follow its instructions. The ghost led Ranjana to a nearby cave. Inside the cave, there was a hidden passage that led to a secret laboratory. Ranjana was shocked to see that the laboratory was full of futuristic technology that she had never seen before.

The ghost explained that the laboratory was built by a group of scientists who had predicted the end of the world. They had created a machine that could alter time and space, and the ghost needed Ranjana's help to operate it.

Ranjana was hesitant at first, but the ghost reassured her that the fate of the world was in her hands. She agreed to help, and together they worked on the machine for days.

Finally, the day of the predicted end of the world arrived. Ranjana and the ghost activated the machine, and suddenly everything around them began to warp and twist. Ranjana found herself in a different time and space, surrounded by a white void. She couldn't see the ghost anywhere, but she heard its voice in her head.

"You did it, Ranjana," the ghost said. "You saved the world."

Ranjana felt a sense of relief wash over her. But as she looked around, she realized that she was no longer in the same world she knew before. Everything was different. The sky was a deep purple, and the trees had strange, glowing leaves.

Ranjana soon realized that she was now in a parallel universe, and there was no way of going back to her own world. She felt a sense of sadness and nostalgia for the world she knew, but she also felt a sense of wonder and excitement for the new world she found herself in.

The ghost appeared before Ranjana once again, and explained that it had brought her to this world because she was the only one who could save it from a similar fate that her previous world had faced. Ranjana realized that she was now on a new mission to save this world, and she was determined to do whatever it takes to protect it.

As Ranjana walked through the strange, new world, she realized that she had found her purpose. She had been given a second chance to make a difference, and she wasn't going to waste it. From that day on, Ranjana worked tirelessly to help the people of this new world. She used her knowledge and skills to make their lives better and to prevent any disasters from happening.

The ghost continued to appear before her from time to time, offering guidance and support. And Ranjana knew that she wasn't alone in this new world. Although she missed her old world she knew that it was time to move on and focus on the present. She had a new mission, a new purpose, and a new home.

As she looked up at the purple sky, Ranjana felt a sense of awe and wonder. She couldn't wait to see what other mysteries and adventures this new world had in store for her. But Ranjana was also excited about the new possibilities that this world held. She began to explore and learn about the new cultures and technologies that were present in this universe. She even found new friends and allies who shared her passion for helping others.

As time passed, Ranjana became known as a hero in this new world. Her efforts to prevent disasters and improve the lives of those around her had not gone unnoticed, and she was admired by many. But Ranjana never forgot where she came from. She often thought about her old world and the people she had left behind. She wondered if they were still there, if they were safe, and if they had found a way to prevent the disaster that had threatened their world.

One day, while she was exploring a remote part of the new world, she stumbled upon a strange portal. She felt a strange pull towards it, as if it was calling out to her. Without hesitation, Ranjana stepped into the portal, and found herself back in her old world. She was shocked to see that everything was as she had left it, as if no time had passed at all.

She quickly ran to her old laboratory, and was relieved to find that everything was still there. She looked around, and found a note from the ghost. It read: "Ranjana, you have proven yourself to be a true hero. You have saved one world, and now it's time to save another. Use the knowledge and skills you have gained to prevent the disaster that awaits your old world. You have the power to make a difference, and we are counting on you. Good luck."

Ranjana felt a sense of responsibility wash over her. She knew what she had to do. She quickly got to work, using the knowledge and technology from the new world to prevent the disaster that threatened her old world. It was a difficult task, but Ranjana was determined. She worked tirelessly day and night, and slowly but surely, she began to make progress.

Years passed, and Ranjana's efforts paid off. She had successfully prevented the disaster that had threatened her old world, and had brought peace and prosperity to the people she had left behind.

Ranjana had become a legend, both in her old world and in the new one. Her story was told for generations, and she was remembered as a hero who had saved not one, but two worlds.

And as for the ghost, Ranjana never saw it again. But she knew that it was watching over her, proud of the work she had done, and grateful for the difference she had made.