Story up for grabs

This is a idea I had in my head that involves the main six having a series of creepypasta nightmares. the main plot is they have become restless for the past three weeks due to the constant nightmares and they decide to put an end to the madness. They all gather in Twilight library to dive into their dreams and kill the being of each respective dream world. For example:

Rainbow dash: Sonic.exe

Twilight: Slenderman

Applejack: happy appy

Rarity either Jeff or eyeless jack

Fluttershy: lavender town syndrome

pinkie: ben drowned

This can be anyway the writer want the story to go, but it has to be scary for the sake of Halloween.