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Upon the defeat of Aquarius' Undead Corpse, Drake, and everybody else saw Aquarius' very soul, or perhaps what remained of him manifesting itself. It seemed as if this last piece of his soul had been confined within his own corpse as the Fragment of the Deep One parasitized it.
"Thank you, everyone." He sighed. "My soul was slowly being consumed by the Deep One's powers as I was sealed within my own body… I am grateful that you've freed me from that curse. The darkness that was engulfing me for so long…"
"A-Aquarius!" Sapphire cried, running towards the enormous soul of the Dragon.
The dragon gently smiled as he saw Sapphire. His soul began flowing around like a sea of gold, surrounding her and embracing her.
FLASH!
He slowly took the humanoid form that Sapphire knew the most, and embraced her in a hug, even if he was ethereal and untouchable, Sapphire felt his hug, his warmth.
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