The only rope that could hold her, would be the cord with which the old gods bound the Fenris-wolf. That one was made of fish's breath, bird spittle, a woman's beard, the miaowing of a cat, the sinews of a bear, and one thing more. I remember - mountain roots. Having none of these elements, nor the dwarfs to weave them, the new generation of dream saviors will have to make do with what they have... To save a unicorn.