The book "The Young Radio Operator on Board or How Roy Mercer Earned His Spurs in the Merchant Navy" by the famous author Lewis E. Theis is a fascinating story about the adventures of a young hero at sea. Roy Mercer, a dreamy boy with a passion for technology, decides to follow the path of a radio operator in the merchant navy. His path is not easy, but exciting - from the first steps on the ship to real tests in difficult conditions of wind and waves. Together with Roy, the reader travels on sea long-distance flights, feeling all the danger and responsibility for the safety of the crew and the ship. Can Roy Mercer earn the respect of his peers and earn his own place at sea? Find out by reading a fascinating book by Lewis E. Theis.