From the back of the book: Welcome Faithful Followers! What you have in front of you is a lost article that refused to die. This was canned by TSR back in the ‘80s-‘90s, and had been hiding for the last 10-20 years, reduced to a dot matrix printout. Fortunately for us, it successfully fought off dust, rodents, and other things that would make your skin crawl! Once again rediscovered, it has been brought to you through the work of people from all over the globe. It has been polished and buffed, so that you will gain the most enjoyment from it. Are you a player, looking to play a specific alien race you saw in the comics? Are you a Judge, seeking out that nefarious race of extra-terrestrials to pit against your players? You will find within these covers details of alien races in the MARVEL UNIVERSE. This game accessory is designed to be used with the MARVEL SUPER HEROES Role-Playing Game.