What is With the Portal Doors

This story is about two young girls by the nicknames of Shadow and Talons hopping through the universes. This universe is Harry Potter in the year Tom Riddle unleashed the Basilisk and Killed Mrytle. Shadow annoys Riddle, and Talons is just trying to make sure they don't change the timeline. Listen to Shadows nonsense sentences and their in syncness. Disclaimer I do not own HP.