Ariane was looking at the same thing. Ty did not understand why she would be so secretive on Cradle and in Cayambe, only to land them in the one location on the surface where Doc was most famous. He guessed she had her reasons, worked out in painstaking detail and never to be shared with the likes of Ty. They had to land somewhere en route to whatever their final destination was, and perhaps TerReForm was enough of a closed community that the buzz Doc would create by landing here would not extend much beyond Magdalena.