Last time Marie and Yoshi went to World 8 and defeat Bowser Jr. Now they are heading to the Koopa Kingdom to Defeat Bowser.

World Bowser

Marie and Yoshi finally made it to the door to Bowser's Castle. But they were short two keys. They looked all over for the keys and searched Bowser Junior's room. Marie found the keys and headed to the door. They put the keys in and unlock the door.

Bowser's Castle

When they went inside and heard a scary voice. "So you must be the fools that hurt my children and trying to stop my plans." Yoshi was really scared and Marie was getting nervous. "You might've defeated my son, but you haven't faced me." Bowser jumped in front of them and when he breath fire at them. When he junped they ran under him and jumped on the button. The platform started breaking and Bowser fail in the pit.

They see Kamek as he shoot magic at the place where Bowser fell and he dropped a Mega Mushroom. As Bowser jumped out the pit in his giant form they started running. Marie used a propeller suit to start floating with Yoshi. She got on Yoshi and started running. When they reached the button they pressed it and Bowser started sinking in the lava.

They have finally won. Both of them ran to the cell room and opened the cage. Peach said, "Thank you so much for rescuing us Yoshi and-. Have we met?" Marie shook her head and said, "No, my name is Marie and well I'm their sister." Mario and Luigi was surprised and ask her where was she. "Well I have been separated from you guys for many years, but I'm here now." Princess Peach suggested an idea. "How about we have a party to celebrate your arrival?" Everyone agreed to the idea.

Mushroom Kingdom

Everyone at the Mushroom Kingdom celebrated the return of the princess and the Mario Bros. Peach started to make a special announcement. "Hello everyone. I have a special announcement. A very special guest has come to stay with us from now on. Please welcome the sister of Mario and Luigi, Marie Mario."

After the ceremony Marie was about to leave until both Mario and Luigi were up to her. They told her to follow them. She was confused and starts to follow them. It was their house. "Why are we here?" Luigi asked her if she can stay with them. It made her surprised and she smiles. "I guess I can stay here! Thanks you guys!"

The End