Knuckles was taken by Robotnik's Amazon daughter Roberta and Sonia fights her to save him before he gets smothered with affections and both Sonic fell in love with a pink hedgehog named amy and Manic falls for a purple cat Megan and they wanna help save knuckles because Amy and Megan are both his sisters

bianca went to see her cousin but in the end she helps her cousin enemies

Sonia the Hedgehog goes to spend a day at the beach, when something unexpected happens.

i dont own anything but my oc's

The unfinished story of Sonic Underground continues! Will the triplets find their mother? How will they defeat Robotnik? And what allies will they gain to help them along the way? Find out in this epic ongoing saga to free Mobius from a vile tyranny!

Manic and Scourge are let out of prison, but Sonic isn't too sure about their relationship.

This is a Trevor mouse X Cyrus lion story.

A prince forced to leave a life he thought he would get, a life with a mother he barely knew, and siblings he had spent a year with in search of said mother. Victory was theirs, but at a price.

Living in an apocalyptic wasteland is not an easy feat, but Sonic, Sonia, and Manic all think they can handle it. That is until an oracle comes and tells them that they are not only siblings, but royalty, and that they have to travel the land and find their mother to bring peace back the peace. Its a big responsibility for these teens, but together they can get through it together.

After an argument with her father goes wrong, Frostine Robotnik and her friends get transported to a magical world of fantasy and danger. As they go through the magical world, they soon learn that not everyone is willing to let them leave so easily. {Book 1 of ?}

In which we discover the downsides to being way past cool, and Sonic is just glad to have Sonia and Manic. A snarky, fluffy, double drabble complete with sibling feels! R&R :)

Here is a Sonic Underground story I wrote. Hope you dig it. ( I'm bacccccccck!)

This is an alternate universe that tells the story of Toy Story 2 with very different characters.

one shot of Tails x Sonic, find out what happens!

He's always been different from his sibs, it's why he lies/Manic has a nightmare that sends him on an unforgiving trip down memory lane. Contains mentions of violence, graphic imagery, and sensitive and possibly triggering themes.

A forlorn mother writes a letter to her son...

Descripción: Sonic y su banda se embarcaran en una nueva historia que revelara secretos, y misterios. Antes de empezar quiero decir algo, soy nuevo en esto de publicar y poner imágenes puede que les guste la historia sin embargo luego ya pondré imágenes . Espero que les guste. Esto será solo el prólogo ya que es un tipo prueba

Last episode of Sonic Underground: Robotnik has trapped Sonic and Manic inside their game. Both brother dodge an upcoming laser without any injuries, but what if one of them was actually hit? Read to find out how these two will survive with no help, no power from medallions, and no extra lives. (Basically last episode plot with extra scenes, Rated T cause i'm paranoid)

This is a poem I wrote based on Sonic Underground.

9 nightmares from Undertait, exe, Fnaf SL, Bendy, And yandere and other nightmares are at war and have to stop the evil Mercy! Mother nightmare, Mercy's sister is helping the nightmares though! As well as the elders. WARNING: Random, Oc, lemons, Sonadow, freddyxfoxy, Mpreg, blood, gay, out of character.

When I was in college, I started watching Sonic the Hedgehog cartoons online. I found Sonic Underground and I was a little saddened that it never really got a proper ending. So, one summer while working at a Boy Scout camp, I wrote down my own ending. I got to share it with a friend at that camp, and he said I had to get it published. Now I share it with anyone willing to read it.

Oneshot. After an accident, Queen Aleena saves Sonic. She plans to leave as she has always done, but Sonic has other plans.

Ever wonder how Sonic Underground REALLY should've ended? Well, here's my version. Includes characters from other Sonic media like Tails, Amy, Blaze, Sally, Antoine and Bunnie. Please enjoy! If you don't like what you see, please don't comment. This is soley my own version of the finale. Thank you! :3

The Sonic Underground discover they now have another sister with a strange surprise waiting for them. If you like werewolf stories and Sonic Underground, then you will love this. Rated T for a bit of gore.

While on the run from Robotnic, Sonic, Sonia, and Manic's van breaks down. The person who happens to fix it, has a history with one of the siblings.