You'll be at sea again with Mr. Trew (Moonraker Mutiny; Kleber's Convoy; etc.), maybe all at sea unless you apply yourself to aligning the cover names, intelligence services (KGB, SIS, and just an appended CIA), surface and sub-surface vessels, nationalities, and particularly characters since the Russians have -ov endings (Lomov, Krasnov, Gerasov), while the Norwegians terminate their names with -en (Olufsen, Martinsen, Petersen). Yes, sorting them out and reassembling them is the main activity after the Russian ballistic missile submarine Zhulcov, with a radiation potential far in advance of ours, founders on a small island off the Norwegian coast and the British set up their operation Daisy Chain to determine its superiority. Meantime a Lieutenant Krasnov seems to have disappeared or defected--the latter proves to be the case only it's involuntary. Former Naval Commander Trew works in all the logistics without making his story either very lively or very deadly.