Rule
Books are real vessels of power
In AMoK, books aren't symbols of knowledge — they are knowledge, in a form you can hold, bleed on, and be hurt by. The right book, in the right hands, can thrum like a heartbeat, radiate emotion, and heal a wound. It can also cost you something in return.
Rule
"Blooded" books can't be lost
Once a book is used in a significant — often violent — act, it bonds permanently to whoever used it. A blooded book cannot be given away, confiscated, burned, or left behind. Take it from its owner and it will simply find its way back, by whatever means necessary.
Rule
Power is borrowed, never free
Every bit of power a blooded book grants demands a price paid somewhere else — an injury, an exhaustion, a debt. Nothing in this world is free, least of all knowledge.
Rule
The Library
Conroy's house is not always where you left it. To the wrong eyes, it's an empty, overgrown lot. To the right ones, it's a floor-to-ceiling maze of books that keeps rearranging itself — bigger on the inside than any house has a right to be, and none too concerned with how time passes while you're in it.
Rule
A pile of books is just a pile of books
Until it's given a name. Stack enough blooded books together, in the right place, with the right need behind them, and something else can take shape — something that listens, remembers, and acts. This is where the story gets its title, and about as far as we'll go without spoiling how.