Suprising change

Chapter 1: A twin for Illya

"Are we done?", asked Illya with a confused look to Rin. They finished the restoration and it didn't took long. But she wouldn't complain if they can going out of this cavern. It's a little bit creepy in here...

"At least for now.", responded Rin with an important face, "Until we measure again, we won't know how successful it was."

"For now, our work is complete.", said Luvia and goes a few steps toward the exit, "Let's hurry and go back. This place is-"

She stopped at the ground started to shake.

"Hold on!", screamed Rin.

The ground under the stick started to crumble and between the cracks lighted pink light out.

"This isn't good... it's coming!", shouted Luvia.

Under Rin and Luvia exploded the ground and smashed them into the air. Illya dashed after them.

"Rin! Luvia!"

Miyu followed her and shouted: "I've got it... Illya, secure our escape!"

"Yeah.", said Illya and flew in the direction of the exit. She felt a little uneasy, because she had let the others alone. But Miyu said she got it, so Illya can't do more than believing her.

Miyu grabbed Rin and Luvia and jumped out of the way. She dogged the rocks who are falling down from the top. Miyu instantly stopped when she saw a huge stone falling in her direction. It was impossible to avoid.

Illya turned around and gasped.
'I need to do something! Or else my friends getting hurt!'
She transformed in the heroic spirit Archer, flew as fastest she could to the others and made a huge Mana shield. The shield was holding it back, but not for that long.

Then everything blacked out.

"Is everyone okay?", asked Ruby and flew to Miyu who is standing next to Rin. They found each other on the bottom of the cave. Rocks are lying around and a mist made of dust took them the view.

Rin coughed. "Just now, what was that?" She looked around and tried to estimate the situation. Behind her moved something. It was just Luvia.

"Miyu, are you alright?", asked Luvia worried after she jerkly stood up. Luvia is wounded and had blood on her face.

Miyu took a look at her. "Yes, I'm fine-", she looked away after she saw her bloody face, "But you aren't. Luvia..."

Miyu started walking around, searching for her friend Illya.
Sapphire flew over to Luvia and investigated her. "I believe you should inspect yourself."

Luvia looked confused but didn't said anything.

Rin took the class cards out.
'Archer's Card is missing.', thought Rin as she counted the cards. 'I saw Illya, but that form...' Rin knew that Illya transformed herself in the heroic spirit Archer again. She looked around. "Illya, where are you?"

Illya was sitting in a corner, unhurt. "I'm here! My head hurts!", she said with a bit pain in her face and touching her forehead carefully. "I think I hit it..."

"Illya!", Miyu shouted and ran in her direction, after she found her.

She suddenly stopped and couldn't believe her eyes. Next to Illya is sitting another person. A girl who is looking exactly like Illya! Sure, not 'exactly' but almost the same. She has a brown skin, pink hair, yellow-orange eyes and wears the Archer costume. Illya has a white skin tone, blonde hair, reddish eyes and her pink magical girl costume. The two of them had noticed each other and were staring with a confused look. Illya couldn't get it.

'I've become two people.'