<wob_jonas> perl -eopen$i,"<",($f="wisdom/aristotle");$_=<$i>; s/, even though.*\\. / without checking. / or die; if (1) { open$o,">",$f; print$o $_ or die; } print substr$_,0;

Ghouls are undead that eat BRAINS. So basically, bog standard undead like zombies or wights, but with some fancy back story in the book that nobody reads.