The point at which Abby's story can't continue results in an amusing bug in that if you ask Olivia about the book (but can't continue 'cause you can't talk to Abby) you get the business card and the next day wake up once again to feet in your face. The loop repeats and you can end up with an inventory full of business cards and scraps of paper and waking up everyday to feet in your face.
Not my thing but I'm sure there are some people who would be happy with this arrangement.