Strange Creatures of the Ninth World is something that will be useful for any MG playing Numenera, additional creatures and well written description will help to create bigger and more interesting world.

The world of Narcosa is colorful, crazy and simply fun. I can see this book being usefull even in other campaigns, addin a bit of narcotic trip to grey and boring adventure. Playing Narcosa as a standalone campaign might prove difficult but it's a great material for a one-shot.

Keep up the good work guys!