Smashing naval melodrama near Formosa, this is a British novel about an American submarine chaser, the U.S.S. Hibiscus. Reeman keeps a fair ear working for his American cast, although a tin Britticism and ""shan't"" or two can be heard. But in the dash and bustle of the story, few readers will notice. The slightly lunatic American captain hero will remind some of the similar intense and bedeviled hero of The Bedford Incident. In the present story, Captain Mark Gunnar was recently tortured by the Viet Cong, escaped, and has been assigned the charge of this unimpressive submarine chaser. The ship's assignment is to establish a secret layover port on an island taken over by the Chinese Nationalists 100 miles from Formosa. The island population however is riddled with Communists, and the Chinese penal colony on the island is governed by a turncoat. Mark Gunnar suspects that a Red invasion is afoot. When both violence and a typhoon erupt, he sees his chance to stem the invasion by sea and at the same time prove his own sanity... The author's professional seamanship lends credibility to the excitement.