1977 novel by Diana Wynne Jones
Drowned Ammet is a fantasy novel for young adults by British author Diana Wynne Jones. It is the second book in the series "Dalemark Quartet".
Plot.
Beginning with the birth of Alhammit Alhammitson, or Mitt, in South Dalemark. Mitt is a young child, his family are evicted from their farm. The Earl Hadd is the cruel and tyrannical ruler of South Dalemark. The family moves to an unpleasant tenement in the city of Holand. Mitt's father joins the Free Holanders, a resistance against the Earl Hadd. Mitt's father disappears, maybe killed by the Earl's soldiers.
Mitt was convinced that three of the Free Holanders betrayed his father to the Earl's soldiers. Mitt is determined to take revenge. He joins the Free Holanders. Milda, Mitt's mother, marries Hobin.
Mitt plans to assassinate the Earl Hadd. Mitt's attempt fails. The Earl is killed anyway by another assassin, a sniper.
Ynen and Hildrida (Hildy) are brother and sister. Hildy is furious with her father. He betrothed her to Lithar, Lord of the Holy Islands, a complete stranger. After the assassination, the new Earl, Harl, refuses to break off her engagement. Hildy and Ynen decide to run away on a magnificent new boat, the "Wind's Road".
Having been seen during the old Earl's assassination, Mitt is suspected. He hides on a magnificent boat. The boat that Ynen and Hildy are running away on. Mitt is a stowaway beneath deck. They are far out to sea by the time Mitt shows himself. He demands that they take him to the North, where he can be safe. The two siblings are uncooperative. Mitt threatens them with his gun, saying he will shoot them if he gets the chance. Hildy and Ynen agree to take him North because he has a gun.
The three find, floating in the sea, a wheat figure of Poor Old Ammet. It had been thrown into the sea during a festival. This is considered good luck. They take the wheat figure on board. They lash it to the prow as a figurehead. Mitt has a small wax figure of Poor Old Ammet's consort, Libby Beer, which they attach to the stern.
That night a dreadful autumn storm assailed the boat. After the storm passed, there is a lifeboat, with one sailor aboard. Mitt realizes that not only is the sailor the sniper who shot the old Earl, he is also Mitt's long-lost father.
Mitt's father commandeers the boat, then forces them to sail to the Holy Islands. He plans to deliver Hildy to her fiancé, the Lord of the Holy Islands. This is Lithar. This is the man she was running away from, to avoid marrying. They arrive in the Holy Islands.
The Holy Islanders say that a great one "will come on the "wind's road" with a great one before him and behind." Hildy and Ynen are taken prisoner. Mitt's father convinces Lithar, to have his own son, Mitt killed. Instead, the Holy Islanders refuse to harm Mitt. They maroon him on an uninhabited Holy Island. Hildy meets with Libby Beer herself. Libby tells her that, if she wishes to return to the Holy Islands, she must trust Mitt. Hildy reluctantly agrees.
On the Holy Island, Mitt encounters two demigods, Old Ammet and Libby Beer, in person and learns their secret names. The uttering of the secret names produce cataclysmic effects. This explains the folk names by which the two demigods are called on Holy Islands: Earth Shaker for Poor Old Ammet; She Who Raised the Islands for Libby Beer. Hildy and Ynen are re-united with their father Navis. 
Navis tells his children that the new Earl wants to kill them. Mitt's father is taking Ynen and Navis back to Holand, but they are to be killed by the new Earl. Mitt arrives. Mitt invokes the greater name of Libby Beer, causing an island to rise up, destroying the boat. Mitt's father is killed.
The Holy Islanders send them off to sea to go North. Mitt promises Poor Old Ammet that someday, he will return to Holy Islands as a friend, not as a conqueror.
Explanation of the novel's title.
"Drowned Ammet" refers to the custom in Holand of throwing a straw figure of Poor Old Ammet (see above) into the ocean.
References.
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