They went back to Traverse and they gave a Navigation Gear to Giroro
Giroro: Looks like you found another one. Let me see. Okay, wait here. I be back.
He left and Ace look down
Wile: Now you remember what Daffy said to you. No frowning and no Sad Faces.
Ace: How can you be so Cheerful? There's still no sign of my Ancestor. Aren't you worried?
Daffy: No way.
Wile: You're Ancestors told us to find the Animal Warrior and we found you. So as long as we stick together, it'll all work out okay. You just gotta believe in yourself, that's all.
Ace: Just believe...
Lexi: I believe in you.
He went somewhere in a Dream and he saw Lexi, who was young.
Ace: Where am I?
Lexi's Grandma: Long ago, people lived in peace, managed in the warmth of light. Everyone loved the light. Then people began to fight over it. They wanted to keep it for themselves. And darkness was born in their hearts. The Darkness spread, swallowing the light and many people's hearts. It covered everything's, and the world disappeared. But small fragments of light survived... in the hearts of children. With these fragments of light, children rebuild the lost world. It's the world we live in now. But the true light sleeps, deep within the darkness. That's why the world's are still scattered, divided from each other. But someday, a door to the innermost darkness will open. And the true light will return. So, listen, child. Even in the deepest darkness, there will always be a light to guide you. Believe in the light, and the darkness will never defeat you. Your heart will shine with it's power and push the darkness away. Do you understand, Lexi?
Lexi's Grandma: Now, run along now.
She left and Ace is watching her
Then he's back in Traverse Town
Wile: What's the matter?
Ace: Umm. Nothing. Lexi? Did you call me?
Then Giroro is back
Giroro: I install that navigation Gear. But, you know? That world is crawling with Heartless. Don't say I didn't warn you. Here, take this along.
They left to the Galaxy train