In a strange world built of stone and sound waves, words become entities and maps are taboo. Alas, the cloud shepherd, inherited his father's unfinished wish - to draw an infinite map to the end of the world. When a sixth mysterious finger that can "write silently" grows on his palm, the pursuit of the "Silent Archive" of the living library also follows. Alas must control the cloud whale, cross the resonant city and the sonic canyon, and uncover the truth about the huge wall of silence surrounding the planet at the end of the world at the boundary of knowledge and silence: outside the wall is the ultimate noise devouring meaning, and inside the wall is a fragile civilization constructed of words. What he ultimately faces is not a geographical boundary, but a choice - to be the pioneer of truth that exposes lies, or to be the last waller to protect beautiful lies.
