You would wake up in a white void, full of blue threads, holding millions of SOULS and other objects. A black skeleton would sit on one of the threads as he noticed you awake, and would look quite annoyed.

"How did you get in the Antivoid? Well, Greetings, Alternate Universe Trash. I am Error Sans, the Destroyer of AU's. Make this quick, whoever you are, before I erase you OUT OF THE DOODLE SPHERE!"