Do not read further.
If you couldn't control yourself, do not go here.
If you did, run sudo apt-get remove frotz. Immediately.
If by any chance you didn't, under no circumstances should you open a terminal and type frotz bookvol.z5.
You did? Oh dear. Try not to ... spend ... the rest ... of your ... week ... aarrrggghhh .. too late...
See you sometime later. Much later.