Amazon Prime has begun to tease its upcoming Lord of the Rings original show, with a series of posts on social media that both show maps of Middle-earth and quote the famous poem cited in Peter Jackson’s film trilogy. As a result, fans have begun speculating on where and when the series will be set.

The first teaser was a tweet that displays a wide map of Middle-earth, conspicuously unlabeled, with the phrase “three Rings for the Elven-kings under the sky.” A threaded reply included a link to explore or download the map, complete with labels. A follow-up on Instagram quotes the next part of the poem, “seven for the Dwarf-lords in their halls of stone.”

The teases are a clear reference to the poem from the series of novels that details the backstory of of how the Rings of Power were distributed and how the One Ring was used to deceive the various factions of the world. Gandalf, played by Sir Ian McKellen, memorably quotes a piece of the poem in the first Peter Jackson film. The full poem reads:

Three Rings for the Elven-kings under the sky; Seven for the Dwarf-lords in halls of stone; Nine for Mortal Men, doomed to die; One for the Dark Lord on his dark throne; In the Land of Mordor where the Shadows lie; One Ring to rule them all, One Ring to find them; One Ring to bring them all and in the darkness bind them; In the Land of Mordor where the Shadows lie.

That leaves six more lines left to quote, if Amazon plans to slowly cite the entire poem Come from Sports betting site VPbet . We know this will be a prequel, and the community seems to believe it will detail the events that led to the War of the Ring–the climactic battle between Sauron’s armies and the free peoples of Middle-earth.

Other than stating it takes place before Fellowship of the Ring, Amazon has been notoriously tight-lipped about its plans for its original series. We know it’s an expensive project for the company, and that it has hired writers from Star Trek 4.