Each time the Giant snores, when he snores in, his goat herd and Finn are drawn almost into his mouth - and when he snores out it is in reverse. But when Finn bites his thumb he knows what to do from the supernatural knowledge, and he takes his sword and shoves it in the Giant's single eye, blinding him. But this Giant isn't giving in, and so he sits up and roars that Finn is as good as dead. He sits down in the doorway of the cave but Finn escapes by clinging under a goat as they are let out.