Brybry

http://pastebin.com/W0FvJ5xt I'm not entirely sure it means anything and I'm not really sure the ebook is reliable. For one there are no line breaks -- it's just one big number. There are also two separate spans with the number (and the same zero width spaces) but the second is invisible alt text with occasional normal spaces. Also, when I looked at it further the zero width spaces are sometimes in the middle of a word which is odd but it's still such a weird coincidence. Also, I would think that if any epigraph was going to be related that it would be the other Ceiling Rotation/Pattern epigraph.

Something interesting I have found by dumping the ebook to HTML and then looking at it with a hex editor is that there is a UTF-8 zero width space (hex E2 80 8B) character after every 3 digits (though this leaves a single trailing 4) I also noticed it in a lot of places where people have copy/pasted the number so I don't think it was just me. I mention this because the only other place zero width spaces are used in the entire book is after every word in the two floorboard 17 every-second-letter epigraphs. Maybe Sanderson copy/pastes from his own encoder/decoder...