While reading about a strange event in the distant past of Equestria, Twilight believes a Darkness that threatened Equestria once will return. Almost as if on cue, several strangers find themselves on the outskirts of Ponyville, but why are they here?

Sonic and Tails discover that the Chaos Emeralds have sent them to a parallel world. Now they must find the scattered Chaos emeralds and get back home before they are missed. Luckily, with the help of a pony named Twilight and another pony wielding a giant key, they may just find all the emeralds.

Sora, Donald, and Goofy have landed in a new world and have been turned into animals. Sora wonders how the Heartless could invade such a beautiful and peaceful world. When he meets up with a strange blue hedgehog, he is one step closer to unraveling the mystery.

Later, the Doctor, Amy, and Rory have fallen into a strange world where magic is treated like science and everyone, including themselves, is a pony. This is one big wibbly-wobbly timey-wimey situation they have all gotten themselves into.

Jonathan and his five friends all have one thing in common. They all love the show My Little Pony Friendship is Magic, but one day they each have a similar dream of the mane six battling for survival in a strange world. Johnathan soon wakes up in a world that's not earth or Equestria but somewhere in between. Johnathan learns that 100 ponies have been selected to battle for the right to ascend as the new prince or princess of Equestria. Armed with a single blue book Johnathan fights alongside Rainbow Dash and his friends to put an end to the conflict and discover the mysteries of it's origins.

A new spin on the whole "Human in Equestria" story. A tale about friendship despite the hardships of battle and war. A crossover as well with Zatch Bell! in terms of setting and situation. I hope this will provide you with something interesting and unique to this genre of Fan Fic.