Enter the shagfoal.
Page 13, Paragraph 4:
Now it's dark, and I'm standing up by the logs and I don't understand how it is that I'm standing there with my eyes open. I'm a little frightened as I look around, and now I hear a noise behind me, like someone walking on dry leaves. I turn to see, and now I'm more than just a little frightened.
There is a shagfoal* standing in the grass less than a dozen feet** away from me. She looks at me - her eyes are brighter than fire and she's a big as a tree stump. I piss down my leg - it's warm, then cold.
Around the shagfoal's feet in the dark there are little shapes moving - they are as ugly as her. They are black and eyeless - I figure out that they're shagfoal pups, crawling and scratching beneath their mother. Their tongues are long, white and worm-like, and they wave them around in front of themselves to taste and smell the air. They're silent, and I'm more afraid of them than I am of their mother.
The shagfoal looks at me, and I have no strength to move - it's like I'm made of stone. I think hard about shagfoals, so I can think of something that'll help me. My people say that the shagfoal are big and frightening dogs, the kind that used to be around during the Ice Age, like the Urks, and now, like the Urk-kine, they've passed away. Only their ghosts walk the earth now, up this world and down the other, and where the barriers between worlds have become thin, as they are at a crossroads or a river-bridge, the shagfoal come.
*A "huge black dog", as Neil Gaiman describes it in the book's introduction - see this Wikipedia entry for more information
**i.e., less than 4 meters
Artist unknown (from es.geocities.com)