Fics like Sonic Boom: The Monster Within

Shadow the Hedgehog has arrived to the gangs home on the run from G.U.N, but rather then having a infamous, neck-and-neck rivalry with the blue blur, the Ultimate lifeform seeks Eggman for a favor. But why? As the Black Comet slowly approaches Earth/Mobius, ready to cash in on a bargain made nearly 50 years ago, it is up to the rag tag Team Sonic and friends to stop a deadly alien invasion. AU version and canon divergence, obviously. Expect sibling shenanigans and tomfoolery. Also, Maria is alive in this fanfic because Shadow deserves happiness dang it! Enjoy!

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