"Bigger?" He stops to think for a moment. What else could survive in a desert climate? His mind does drift to Third Party doings, but he'd really like to see if he could get her to say it herself. Sometimes once even a little 'safe' information starts to come out it can make it easier for more to flow from it.

"S-sandworms? Sandworms in a desert sound pretty big and beastly!" And they could be, unless you knew their territories, then it was fairly easy to avoid them. At least that was if you lived on Gunsmoke. Other wordily sandworms could be harder to deal with.