Back Cover SummaryEdit

Ken Kluger, son of a Japanese mother and a German father, had attended university in England and was fluent in all three languages. When war broke out, though, he ended up working for the British as a translator and code-breaker.

Soon, however, he found himself involved in much more dangerous work. He became part of a perilous plan to use a captured German submarine - holding a lethal secret weapon - to destroy an enemy U-boat pen and stop a deadly attack!