Aquis Submersus is an 1877 novella by the German writer Theodor Storm.
It is set in Northern Germany right after the Thirty Years' War and tells a tragic love story.
An English translation by Geoffrey Skelton was published in 1962 as Beneath the Flood.
[2][3] The novella was the basis for the 1951 film Immortal Beloved, directed by Veit Harlan.
[4] It was also the basis for Wolfgang Schleif's 1979 television drama Wie Rauch und Staub.