Strange One: (Avatar: The Last Airbender)

"Her! She's the one we want!" The general barked. At his command, the red soldiers rushed forward, daggers of fire blazing in their hands.

Madi was frozen in fear, unable to run, and unable to scream. The Fire Nation soldiers grabbed her by her ponytail, and took her hands and slipped them into tight, uncomfortable ropes. Finally finding her strength again, the girl tugged and pulled, attempting to break free from her captors, but there was no way out of the Fire Nation's iron grip.

The general gave a sly smile as the walked pompously up to his new prisoner, "Well, well, Strange One. There's nowhere to run now."

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At the very start of the Hundred Year War, before the genocide of the Air Nomads, the Fire Nation got their hands on the Strange Ones... Which appeared to be their most powerful weapons yet.