Frogman: Commander Crabb's Story is a non-fiction book written by Marshall Pugh that details the life and mysterious disappearance of British naval hero, Lionel ""Buster"" Crabb. Crabb was a renowned frogman, a type of naval diver, who gained fame for his daring underwater missions during World War II. After the war, he continued to serve his country as a spy and was tasked with investigating the Soviet Union's new naval technology during the Cold...