The Plague

Twilight and her friends returned to Ponyville when they got back, everypony cheered with enjoyment. Spike ran up to Twilight along with Shining Armor in tears. They both hugged and thanked her and loved on her. Sweetie Belle and her mom and dad were in awestruck with tears while hugging Rarity. "You're alive!" They kept saying. AppleBloom, Big Mac, and Granny Smith were all patting AJ on the back and thanking her. Angel was crying and hugging and cuddling Fluttershy. Pinkie's family and Gummy were hugging and crying and thanking her and promised to throw a party afterwards. Rainbow Dash stood alone while everypony was getting hugs and kisses.

"Rainbow Dash! Rainbow Dash! RAINBOW!" A familiar voice cried. Scootaloo came running up to Rainbow Dash in tears. She jumped into RD's arms and started yadding on and on about how cool she was and how she saw a giant rainbow in the sky. Rainbow Dash explained exactly what happened and bragged about how cool she was helping all the pegasi.

Afterwards, Equestria threw a big party in Ponyville run by Pinkie Pie. Everypony attended and were so excited to read Twilight's new book, "The Plague". She brought a souvenir as well - a jar full of some of the goo that the beast had. The little foals and kids all ooed and awed during the reading of the book. Rainbow Dash taught Scootaloo how to fly during the party and Rarity explained how she was alive the whole time, just passed out.

"All that ruffian did was put me to deep sleep and suck out my colors. I woke up afterwards and eventually got my colors back. I saw Twilight and the others running to Canterlot, and with my rage, I wanted to follow. So, I did. I then was greeted by the others and we defeated that monster." Rarity explained. Sweetie Belle was squealing with excitement.

After the stories they all ate a giant chocolate cake with vanilla icing and strawberry sprinkles. They also ate Hay sandwiches and zap apples. Princess Celestia then announced that day to be a holiday - a holiday to celebrate the defeating of the Goo monster.

Twilight later had to throw away the jar full of goo because it was rotting and started stinking up the castle. She never forgot the time she defeated her own creation. She would now and then try bringing back a cheeriful version  of the goo monster but it would fail and would only last seconds. She would never stop trying, though, and with that she lived her life.

Rainbow dash visted her one day. She knocked on her door.

"I-It's me, Twilight! Come in!" Twilight greeted. Rainbow Dash came into the castle and brought in a book titled "The Plague". Twilight smiled as Rainbow Dash pulled it out. "Now, I need you to sit down in your throne, please." Rainbow asked. Twilight did and squeaked in joy.

Rainbow dash opened up the book and coughed.

"The Plague," she read. "Chapter 1: The infection starts"