Various! Sonic Underground Series...by CasonArtSweet
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3K674Meet Princess Kadence the Hedgehog or "Kade" for short, the eldest sibling of her triplet siblings Sonic, Sonia, and Manic. When the evil Dr. Robotnik took ove...
Sonic Underground Series x Older S...by RainbowCart2.3K492
2.3K492Join Sonic the Hedgehog, his triplet siblings, Sonia and Manic, and their eldest sister, Sophia, as they journey all throughout Mobius in search of their missing mother...