They landed the Gummi Ship and entered the tower. They climbed the stairs and reached the top floor.
They saw a large door with a star-shaped emblem. They knocked on the door and waited.
The door opened and they saw an old man with a long beard and a blue robe. He had a stern expression and a wise aura.
He was Master Yen Sid, the Keyblade Master.
He looked at them and nodded. He invited them in.
They entered the room and saw a large desk with a book and a globe. They also saw a broom and a bucket.
They greeted Master Yen Sid and introduced themselves. They explained their situation and asked for his help.
Master Yen Sid listened to them and nodded. He checked his book and his globe. He confirmed their situation and gave them his answer.
He told them that they couldn't go back to Earth because Organization XIII had covered it in darkness. He told them that Earth was one of the many worlds that had been attacked by Organization XIII. He told them that Organization XIII was trying to create Kingdom Hearts by collecting the hearts of all worlds.
Finn was angry and said, "Those petty monsters!"
Master Yen Sid agreed and said, "Indeed, they are."
Finn said, "He took away our families, he even took away Mr. Schue from us!"
Finn was so angry he could barely keep his words together.
Master Yen Sid told them that in order to go back to Earth, they had to travel to different worlds and help defeat the Organization XIII. He told them that by doing so, they would restore the balance of light and darkness in each world. He told them that by doing so, they would also unlock new powers and abilities for their Keyblades.
Rachel was hopeful and said, "Really? You mean we can still go back to Earth?"
Master Yen Sid nodded and said, "Yes, you can."
He told them that he would guide them on their journey. He said to them that he would use his magic to communicate with them through their Keyblades. He told them that he would use his magic to show them the way to each world.
Sora was excited and said, "Wow, that's awesome!"
Master Yen Sid smiled and said, "It is."
He gave them some advice and some warnings. He told them to be brave and be careful. He told them to be loyal and be smart. He told them to be kind and strong.
He wished them good luck and a good journey.
They thanked him and bowed. They left the room and went back to the Gummi Ship.
They boarded the Gummi Ship and prepared to leave. They looked at the stars and wondered what worlds they would visit.
They looked at each other and smiled. They knew what they had to do.
They had to go on a journey together.