The king sent out all the forces he wished that morning. The battle was more terrible than all the others put together; but Cian went through the king’s forces, and at sunset not a man of them was living, and he let no one nearer than the point of his sword.
“How did the day thrive with you?” asked the old man when Cian came in.
“I have killed all the king’s champions.”
“I think,” said the old man, “that you have the last of his forces down now; but what you have done is nothing to what is before you. The king will come out and say to-morrow that you will not get the daughter with Glas Gainach till you eat on one biscuit what butter there is in his storehouses, and they are all full; you are to do this in the space of four hours. He will give you the biscuit. Take this biscuit from me, and do you hide the one that he will give you,—never mind it; put as much as you will eat on this, and there’ll be no tidings of what butter there is in the king’s stores within one hour,—it will vanish and disappear.”
Cian was very glad when the old man told him what to do. They spent that night as they had the nights before. Next morning Cian breakfasted, and went to the castle. The king saw him coming, and was out before him.
“What do you want this morning?” asked the king.
“I want your daughter and Glas Gainach,” said Cian.
“Well,” said the king, “you will not get my daughter and Glas Gainach unless within four hours you eat on this biscuit what butter there is in all my storehouses in Spain; and if you do not eat the butter, your head will be on a spike this evening.”
The king gave him the biscuit. Cian went to the first storehouse, dropped the king’s biscuit into his pocket, took out the one the old man had given him, buttered it, and began to eat. He went his way then, and in one hour there was neither sign nor trace of butter in any storehouse the king had.