“... he slipped in and out of himself, testing which disguise to use. He knew it had to be his most clever. The Sisters were too astute for his usual chicanery.
He flapped his wings, then soared. The shape of an eagle, useful for fast travel across worlds, but only temporary. Not convincing enough to hide his true identity.
... He pushed out of the eagle skin and leaped away from the horde of birds, springing into the sky. Into nothingness.
Instead of transforming into another creature, he hovered in between. Dangling on the mouth of wind. He rumbled with pleasure, at his own cleverness, born out of accident and indecision: he had become pure air.
Without effort, he whooshed past the threshold into the cave, into the bark of the Great Tree, winding cleverly under and over and through a maze of roots and rough stone, past every trick and trap the Sisters had set. He delighted at the speed at which he travelled, catching himself just in time, before his enthusiasm revealed the disguise. Slowing impulse to a mere draft, sucking into himself, he reached the very heart of the Norns’ lair. The Great Hall of Time.”