The Starry Throne

From publisher blurb: In The Starry Throne, a group of level-8 adventurers travels to the Red Desert, interested in rumors about an ancient elven temple buried in the sand. Gadino Veren, a researcher and explorer, claims to have a magic key that might be necessary to open a legendary gate in the elven temple. However, the elves shut that gate forever for a reason... The temple is filled with traps and immortal guardians that have the sole task of impeding anyone from using the throne again. If the heroes wish to learn more about the ancient elven culture and the main purpose of the throne despite the several grim warnings, they must overcome all the challenges and defeat the eternal guardians of the throne.