While foiling one of Robotnik (Eggman's) plans of world conquests, Sonic is unknowingly sent to Equestria and meets its heroes But he doesn't come alone; something else has followed him to the land of ponies. A power that could destroy the very land beneath his feet.

This story is a sequel to Mobains and Equestria Girls 2: Return of the Equestria Girls

A Dark threat from the Nightmare Dimension has come to threat the universe of the Mobians and Equestria Girls. Can our heroes unite against this enemy? Or will this be the end of their line? And the beginning of the Eternal Night

It has been more then a month since the destruction of Mephiles the dark and harmony was once again restored in Equestria, so Celestia sends Sonic, Shadow, and their friends to the Crystal Empire to introduce them to Twilight's brother Shining Armor and her sister in law Princess Cadence. But the new Nightmare Moon decides to cause trouble and decides to make a new evil hedgehog named the Chaos Phantom out of the Chaos Emeralds to get rid of Sonic and Shadow once and for all. As Chaos Phantom arrives at the Crystal Empire during the night, the New Nightmare Moon tells him to take the Crystal Heart and then he disappears in a mirror before Sonic, Shadow, and the others could stop him. Can Sonic, Shadow, and two of their friends go into the mirror and stop Chaos Phantom or will he carry out the new Nightmare Moon's wishes and finish them once and for all?

It's been two years since Sonic and Shadow defeated Discord and now thanks to Sonic's friend Tails they can return to the land of Equestria. But when they get there they learn that their old enemy Mephiles The Dark has returned and has the five of the main six under his control and Twilight and the princesses as his prisoners. Can Sonic and Shadow along with their friends stop Mephiles before it's to late? Or will Mephiles finally get his revenge?

*note* This story contains five of the six Elements of insanity and contains Nyx from Pen stroke's Past Sins. Although this story features Pen Stroke's Nyx (Past Sins), this story itself is not related to Past Sins, nor does it require a reading of Past Sins. And although this story contains five of the six Elements of insanity I don't own them all the credit goes to their creator theinvertedshadow.

This story is a sequel to Mobians and Equestria Girls: Fates Between Worlds

The Equestria Girls accidentally found the portal into Mobius. Now they will have to help the Mobian Heroes save their dimension from an evil from another world. (Sound familiar) Will they succeed? Find out in this brand new awesome sequel, Mobians and Equestria Girls 2: Return of the Equestria Girls.

Note: Not many people thought this was as good of a story compared to M&EG 1 on FANFiction.net. So I don't expect many people to like it on FIM.

Sonic, Shadow, and Silver have been sent to the world of Canterlot High along with the seven Chaos Emeralds by the Master Emerald after hearing of a prophecy about the fate of worlds. They will have to go through school again if they are to regain the seven Chaos Emeralds and saved the worlds from the eternal darkness, for the emeralds have been claimed by some of the students of Canterlot High.