Alien Problem

It's late August. The green, summer leaves are turning a rich orange and red. The days are cold, the fall breeze pushing through. And during this time, a certain problem occurs. A problem that Sonic and his friends have to deal with and fight off. After a recent change with someone's behavior and form, the heroes face a new order of the Black Arms, led by Eclipse the Darkling. Will they be able to defeat them in time? And most importantly, will they be able to save a friend who could easily become their enemy?

Read to find out.
Characters do not belong to me, they belong to Sega. Art isn't mine. If you(the artist) have a problem with this picture being used as the cover, please message me and I'll take it down.