This was a disappointing waste of a good concept. Evans's "Time Station" series is about "time wardens" stationed in the past to prevent time travelers from changing history. In this volume, the warden on station in Cold War Berlin has to stop a KGB assassin from killing President Kennedy as he arrives to give his famous speech there in July 1963. Yet there is little in the book to measure up to Evans's enjoyable use of the idea in his previous entry in the series, Time Station Paris
; indeed, a few minor changes and the novel would have been indistinguishable from any other tepid Cold War-era historical thriller. Overall, it's not a book that will satisfy fans of the previous book, who will probably be happier leaving off with that volume.