He issued a command that caused his grabb’s legs to fold, bringing it as low to the ground as it could go, and extended a hand. Ty took his arm and steadied him as he stepped off the robot and found footing on the ground. He planted the stick with his other hand, then cautiously let go of Ty. Then he advanced a step. All of these actions produced murmurs among the Diggers. Perhaps they had seen Doc initially as some kind of cyborg, but now understood that he was just a very old man. He walked several paces until he found a flat spot that suited him, then planted the stick.