Asimov puts together another excellent sci-fi novel.No one handles a mixture of robots and humans with thesame panache as Asimov. As usual the famous three lawsof Robotics are called into question and Asimov playsupon the intricacies of the interpretation of the lawsmasterfully.However it is not a very good murder-mystery. The endingdoesn't follow naturally from the facts presented earlierbut is kind of artificial; the author springs new stuffon the reader and explains it all away - ratheruncovincingly.