"And are those goggling flaming eyes not big enough and bright enough to see that this is the soft bridle called Gleipnir, which is made of the breath of fish and of the spittle of birds and of the footfall of a cat?"
"Now, although certainly such a bridle was foretold," the snake conceded, a little uneasily, "how can I make sure that you speak the truth when you say this particular bridle is Gleipnir?"
"Why, in this way: I will cast the bridle over your head, and then you will see for yourself that the old prophecy will be fulfilled, and that all power and all life will go out of you, and that the Northmen will dream no more."
"No, do you keep that thing away from me, you little fool! No, no: we will not test your truthfulness in that way. Instead, do you two continue your ascent, to a more terrible destruction, and to face barbaric dooms coming from the West. And do you give me the bridle to demolish in place of you. And then, if I live forever I shall know that this is indeed Gleipnir, and that you have spoken the truth."
So Niafer consented to this testing of his veracity, rather than permit this snake to die, and the foundations of Norroway (in which kingdom, Niafer confessed, he had an aunt then living) thus to be dissolved by the loosening of the dying serpent's grip upon Middlegarth. The bridle was yielded, and Niafer and Manuel went upward.
Manuel asked, "Snip, was that in truth the bridle called Gleipnir?"
"No, Manuel, it is an ordinary bridle. But this Serpent of the North has no way of discovering this fact except by fitting the bridle over his head: and this one thing the serpent will never do, because he knows that then, if my bridle proved to be Gleipnir, all power and all life would go out of him."
"O subtle, ugly little snip!" says Manuel: and again he patted Niafer on the shoulder. Then Manuel spoke very highly in praise of cleverness, and said that, for one, he had never objected to it in its place.