Period races off, following her intuition that this thundering sound will alleviate the boredom she is feeling so fiercely.
Boom
Boom boom
Boom
Boom boom boom
Like a child tormented by a sentient board game, she follows the sound, getting clearer and more regular, almost musical, before she breaks through some bushes and finds herself transported to what must be some terrifying alternate world. The sound, she finds, is coming from people smashing sticks into large barrels of wood, it's rythmic and aesthetically pleasing. The people themselves. They are all dressed weirdly. Colorful garb and masks of pokemon, both familiar and unseen, cover the faces of people all around her in the streets.