You got this notebook off of a wino who'd been trapped in Lord Spookyraven's cellar for Grod knows how long. It appears to be a rough dictionary of sorts, for hobo glyphs. You know the sort of thing -- the little marks that hobos draw on walls to identify places where you can get a free handout, or to warn about muggers, or so forth.

Except the ones in this notebook appear to be things like "The Formless One approaches", or "beware of nightgaunts", or "in praise of the soul eater". Also they kind of writhe when you look at them, and it makes you a little uncomfortable.