bat_pony black_bars book checkered checkered_floor cutie_mark dropping_object equid eventide falling_object fangs female feral flower fur furniture grey_body grey_fur grey_wings hair hasbro hooves icaron inanimate_transformation inside laboratory laboratory_equipment laboratory_glassware letterbox mammal membrane_(anatomy) membranous_wings mid_transformation multicolored_hair my_little_pony petrification plant potion purple_eyes scientific_instrument sitting solo spilling story story_at_source story_in_description table tail teeth test_tube transformation tufted_ears two_tone_hair underhoof window wings