This is my first Pokemon fanfic, so if I mess up Pokemon names or who has what Pokemon, please let me know.

"Telepathy."

"Talking."

'Thoughts.'

Chapter 1 - The Dilemma

Greninja ran from the angry Charizard. He had accidentally wandered onto his territory while he was looking for the roots of that evil plant, and the orange Pokemon thought he was a threat. Charizard used Flamethrower, and while he was busy dodging, he ran off a cliff. Zygarde saw this and raced to try and catch him, but they were too late. Greninja reached the bottom and broke many bones. Zygarde realised Greninja was going to die in the next hour due to the injuries he had gained. The only solution to heal him was in Alola. Zygarde knew it would be a stretch to be able to get Greninja there, but he contacted the Tapus through an emergency mind link. "Get Ash. His Greninja, one he has a Bond Phenomenon with, is dying. The only way to save is to bring him to Ash and for Ash to heal him. Get Ash to focus on Greninja, and only Greninja, and Ash's true form will be released to heal Greninja. Hurry."

"We will get him." The Tapus responded immediately.

One hour earlier…

Ash woke up and stretched. "Hey Pikachu! How you doin'?"

"Pika pi." Pikachu yawned. He fell back asleep. Ash shook him back awake. "Pikaaaaa…" Pikachu groaned.

"I know, bud. But we have school today. So let's get going!" Ash cheered, finally getting Pikachu up. They went downstairs to find Professor Kukui setting out breakfast.

"I was wondering if you were going to get up soon." He joked. "Come eat, I have breakfast ready."

"Yum!" Ash cried and he and his Pokemon dug in.

At the Pokemon school…

"Hey Ash!" Mallow called as Ash ran into the classroom.

"Alola!" Ash responded. "I wonder what we'll do today."

"Me too. Professor Kukui promised something rare and interesting today. What are you going to do after school today?" She asked.

"Probably train with my Pokemon." Ash said. "What about you? Working at the restaurant?"

"Actually, no. I have a break today." She responded.

"Hey you two! Come over here!" Lana called from where she, Kiawe, Sophocles, and Lilly stood. As they ran over, she asked, "What do you think Professor Kukui meant with 'something rare and interesting'? We think it's going to be some sort of disease."

"Maybe it'll be a new Pokemon." Ash suggested.

They were interrupted by Professor Kukui, who had walked in. "Sit down. It's time for class to start. Today we will be learning about the Bond Phenomenon, a rare case in which a trainer and their Pokemon that brings out the Pokemon's true potential. This rarely happens, and the trainer and his Pokemon that are able to do it are very lucky. Yes, Ash?" Professor Kukui asked Ash, who had just raised his hand.

"Have any of you watched the Kalos League finals?" He asked. Everybody shook their heads. "Well, in the Kalos League finals, and before then, my Greninja and I had a Bond Phenomenon. We lost and got second in the Kalos League, but we had fun, and that's what matters. Right, buddy?" He asked Pikachu.

"Pika pika." Pikachu said firmly. Everyone stared at Ash.

"Should have known Ash was the one to do that." Professor Kukui said.

"You activated the Bond Phenomenon?" Kiawe yelled, astonished.

"Wow." Lana said simply. Just then, the four Tapus flew into the classroom. They picked up Ash and flew down to the schoolyard.

"Ash!" Mallow and Sophocles yelled. The Tapus set him down and started to spin in a circle around Ash. They spun faster and faster around a shocked Ash. His classmates ran as fast as they could down to the schoolyard, and when they got there, the Tapus were just a blur.

"What's going on?" Lilly asked.

"I don't know." Professor Kukui replied.

Then they all heard a voice. "Ash. You must call out to Greninja. He is dying. Call out to him, and bring him here."

"Okay?" Ash said, confused.

"Reach inside. Call him to you. Only you can heal him, Ash." The voice said. It seemed to come from the Tapus.

"Are the Tapus talking?" Mallow asked.

"I think so…" Professor Kukui said. "Maybe they're using some form of telepathy. But what are they talking about how Ash can heal Greninja? Maybe it's something with the Bond Phenomenon, but I don't think so."

"Ssh. I want to hear what's going on." Lana hissed.

Ash closed his eyes. He breathed in and out steadily. When he opened his eyes again, he saw a see-through Greninja that was breathing slower and slower with each second. He reached for him, but there was something blocking him. He strained to reach Greninja. "Greninja!" he called, hoping for a response. Greninja looked up and saw Ash.

"Ash." He said faintly. "Help." Ash didn't bother to dwell on the fact that he had heard Greninja, but instead focused on Greninja. He felt the thing that was blocking him disappear, and Greninja was there in front of him.

'How did that Greninja get here?' Professor Kukui wondered. 'Did the Tapus have anything to do with it, or was it Ash?'