1967, Australia. On December 17th, Harold Holt, Prime minister, went for a swim on Cheviot Beach. He was never seen again. On December 19th, he was officially declared dead. Heart attack ? Suicide ? Abduction by pocket submarines ? All we know for sure is that he disappeared beneath the waves, in spite of the intensive searching. Staunch supporter of the Vietnam War and the US President Lyndon Johnson's policy, said to be also a spy for the Chinese and Japanese government, he was a «security risk». According to the memoirs of the inevitable Jack Straughan, the British secret services were involved. The private eye William Bliggs, alias «Chauncy», reopens the case. With this new investigation led by his favourite characters, Richard-Warren Strong explores the diverse theories of the famous and mysterious disappearance of the Australian politician. Ramifications beyond suspicion, international background and several reading levels give his last thriller an amazing power of addiction.