Gregory Powell and Mike Donovan are now testing out a new mining robot which controls six subsidiary robots. It isn’t, however, working out at all and, as usual, they have to figure out why.

The last and least of the Donovan and Powell stories. (They’re featured in some later robot stories, but none are much like this original triad, which includes this story, “Reason,” and “Runaround.”) It’s actually fairly weak and uninteresting, particularly in comparison to the other two, and is perhaps one of the two or three least stories in I, Robot.

Found In

	I, Robot
	The Complete Robot
	The Asimov Chronicles