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Sonic's Secret Underground Base is a location that appears in the Sonic the Comic series...
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|current||15:49, May 2, 2010||803 × 447 (92 KB)||Supermorff||Sonic's Secret Underground Base (featuring Porker Lewis, Johnny Lightfoot, Amy Rose (Sonic the Comic), Kintobor Computer and Sally Acorn (Sonic the Comic)) from ''Sonic the Comic'' #33. Art by [[Richa|