There is a rumor going around about buildings disappearing on an urban legend website. Hiro and the gang go to investigate a certain cave with people from the forum. As they go deeper into the cave, terrible things happen…
there were creatures with
heightened hearing to hunt in the dark!
أنّه كانت هناك مخلوقات ذات حاسّة
سمع مُعزّزة للاصطياد في الظّلام
segundo a enciclopédia, existem 
seres com os sentidos aguçados.
что есть существа с усиленным
слухом, которые охотятся в темноте.