Hammered

ascended into the shadow of a huge … tract of land. It was the plane of Asgard.
    Gritty rocks buttressed clumps of rich brown earth, and wispy roots waved drily in the wind, like the fine hairs that grow wild and unheeded from the edges of old men’s ears.
    There was no space between the earth above and the trunk of Yggdrasil, no place for the squirrel to go, and I thought he was going to ram us into it—or else keep chugging through one of those neato optical illusions that Bruce Wayne had in front of his cave. But instead he slithered into a large hole in the root of the World Tree, invisible until we were on top of it, and for a brief time—half a gasp—we were horizontal in a sort of scoop, a small concavity at the base of a long, wooden throat that yawned above us. The back wall was smooth, but the floor we rested on was rugged and littered with the shells of nuts and shed fur. Piles of uneaten nuts and a rough nest of leaves could be seen in a smaller area that winked dimly through a short passage. I assumed I was looking at the place where Ratatosk rested during the winters. The inside wall—or, rather, the opposite side of the root’s outer bark—was scarred and pitted and ideal for climbing, and Ratatosk flipped himself (and me) around so that he could ascend using that surface.
    We rose through a Stygian shroud of black, its only sense of depth coming from a hollow whistling of wind passing through my hair. How long will we travel in the dark? I asked Ratatosk.
     the squirrel replied.
    How far above the plain?
    
    You mean your length?
    
    I see the light now. Excellent. You are without a doubt the finest of squirrels .
     Ratatosk replied, sounding at once embarrassed and proud. He was such an agreeable fellow, and I smiled briefly at the top of his head before frowning at the light. The unavoidable problem of the Norns grew closer with every leap upward. I could not coach Ratatosk out of this; whatever he did, the Norns would foresee it. But now I feared that they truly shared my paranoia and that in their eagerness to attack me—the unseen, uncertain danger on Ratatosk’s back—they would willingly accept collateral damage, wounding both friend and foe. I did not want Ratatosk to come to harm, but neither did I want to have him stop; they would be prepared for such an event. As it stood, he was bringing me directly to them, where they could easily attack me astride the squirrel, flat against the trunk like a target. Bugger it all.
    Ratatosk scurried out of the hole in the root and headed down the outside surface, and as soon as I saw the earth perhaps ten feet below, I unbound myself from his fur and leapt off, somersaulting in the air so as to land on my feet. A hoarse shouted curse and a flash of light startled me in midair, then I heard (and felt) Ratatosk scream as I landed, the sting of impact flaring in my ankles and knees. As the squirrel’s cries continued, I dropped and rolled to my right, expecting to be crushed underneath him as he fell from the tree. But that didn’t happen; his voice cut off abruptly, the bond between our minds snapped, and I glanced up to see naught but a flurry of ashes and bone fragments raining down from the place where he’d clung to the World Tree.
    My mouth gaped and I think I might have whimpered. The Norns had obliterated him completely—a creature they’d known for centuries—because of me. It was like watching Rudolph get shot by Santa Claus.
    Clearly, the Norns must have thought I represented a dire threat to act so rashly. I tore my eyes away from the horror and watched them warily, keeping still to maximize the effect of my camouflage.
    They couldn’t see me. Their blazing yellow eyes, smoke curling from the sockets, were still fixed above my head on Ratatosk’s swirling remains. They were stooped hags with clawlike fingers, and their faces bore frenzied expressions that mothers warn their children not to make in case they freeze that way. Dressed in dirty gray rags that matched the greasy strings of hair falling from their scalps, they advanced carefully on the tree to make sure the danger they’d foreseen had passed.
    It hadn’t.
    It wasn’t long before they vocalized this. One of them tilted her head upon a