A manuscript is found: filled with small, precise writing and smelling of pit-water, it tells the story of an old recluse and his strange home - and its even stranger, jade-green double, seen by the recluse on an otherworldly plain where gigantic gods and monsters roam.
"I could change, you see, and take things as all sorts of odd characters. If I was spotted and followed, I'd try to duck in an alley or a doorway and change again. The clothes are extra. Sometimes I could hide clothes in a lot. Most of the time, though, I'd have to change into something new. A bird, a cat. Then I'd carry what I had stolen in my beak or around my neck. Once I copped an umbrella and changed into a big dog and went off with it in my mouth."
The Leader is suffering from a fatal illness of pituitary gland. Technology is available for transplant of the gland from a human donor. But there is a glitch. Dr Lans, the only surgeon capable of performing the surgery, is in concentration camp...