 What are two kinds of goods Casey Ritter deals with throughout the story?
Sure, the crystals are deadly, but I was smuggling them legitimately, in a manner of speaking, for this doctor to experiment with. Well, Casey Ritter may be a lot of things we won't mention, but he doesn't rat on his clients. We possess well-authenticated photographs of these inhabitants, and if you are prepared to visit them and in some way worm from them the secret of their anti-gravity field, the government stands ready to issue you a full pardon as well as a substantial monetary reward. Well, a cross between a scorpion and a grasshopper, to be accurate.
 Killicut Emeralds and Kooleen Crystals
 Strychnine and Space suits  Jupiter crystals and Mars emeralds  Kooleen Crystals and Kooleen Emeralds  Killicut Emeralds and Kooleen Crystals