Months have passed since the Turtles have defeated their arch nemesis Shredder and all is well in New York City. However though, things are not as peaceful as the Turtles could hope for. One night while out on patrol a mysterious vortex portal is activated sending the four brothers into another world full of Mobians who struggle to keep Dr. Eggman at bay but luck is on their side once all of Team Sonic including Sonic himself discover the Turtles. Join the Turtles Leonardo, Raphael, Donatello and Michelangelo in their battles side by side with the Mobian heroes Sonic the hedgehog, Amy Rose, Tails the fox, Sticks the badger and Knuckles The echidna as they face the evil Dr. Eggman every day in order to keep the world safe from harm while also even, in some cases, dealing with Metal Sonic the Badnik and Shadow the Ultimate Lifeform and prepare for awesome teamwork between the beloved heroes from two different worlds! Note: This takes place after the TMNT 2012 show and during Sonic Boom, I don't know much about TMNT honestly so forgive me if I get the Turtles' personalities wrong and if you don't like Sonic Boom you don't have to read it, this story is towards people who do like Sonic Boom but I won't make it stupid like how a lot of people thinks it is in this story so please give it a chance. And one thing is that updates might be slow so I apologize if it takes a little while for a new chapter to come out. Enjoy! :) (TMNT belongs to Nickelodeon and Sonic Boom belongs to Sega and Cartoon Network so this story is just a fan fiction/crossover thing)

Shadow made a serum that changed Sonic into his personal love slave. Soon, Sonic had feelings for Shadow even without the serum. Do you think it will work out with them? Or not?

When a normal day (beating up Eggman) take a sudden twist, Sonic and Shadow involuntarily go on an interdimensional adventure into the world of the Wild Kratts. Stuck with a group of animal-loving scientists, the two hedgehogs must find the chaos emeralds in order to get home. But a dark secret from a once shadowed past comes to light, and they must learn to fight together to prevent the decay of a world not their own.

Safe Haven will experience it's first string of crimes. Murders, a case they have not experienced in many years. And in the center, Jackson and his friends, all with a new power. The power of "Persona" Can they solve this case? Or will the killer continue to strike? (Based on the characters made by VivziePop and the "Persona" series by Atlus) Special thanks to WinterDragonslayer44 for the cover art. Please, go check her stories out.