I am love the idea that the game-like abilites have such a creative, flexible way to be used. That they are not fixed, but just a manifestation of their nature, which can be manipulated with proper understanding and mental imaging. All respect to the author.
I love the descriptions of his mind, not too much nor too little of information is left out. It feels like I'm in that library with Eiro helping him along trying to give him pointers on where to look.
