Sonic, Shadow, and Silver landed on Planet 51. But, the problem is: they're missing a chaos emerald. Where will the last chaos emerald be? And who will find it first?
Crossover - Sonic the Hedgehog & Planet 51 - Rated: K+ - English - Mystery/Adventure - Chapters: 1 - Words: 959 - Favs: 1 - Follows: 1 - Published: 4/20/2014 - Shadow, Sonic, Lem, Skiff - Complete