WARNING: The following article may contain potential spoilers for the upcoming film, Shang-Chi and the Legend of the Ten Rings, which releases in theaters on July 9, 2021.

Earlier this year, set footage from the upcoming Marvel Cinematic Universe film Shang-Chi and the Legend of the Ten Rings showed the construction of a large temple and smaller houses in Sydney, Australia, which confirmed that filming for the movie would resume soon. While it was unknown what those structures were at the time, it is now believed that the set might be the lair of a prominent villain from the pages of Marvel Comics.

According to a source close to Murphy's Multiverse, the set may be The Valley of the Sleeping Dragon, the haven of the evil space dragon Fin Fang Foom, which may confirm the character's involvement in the movie. The source described the set as "a hilly, seaside location with a temple at its center with the greenscreen serving as the seashore itself." The other huts that are seen on the set serve their own causes, but the most notable feature is a structure called the battle dome, which is encircled by a region "where the village's warriors hone the skills necessary to protect Fin Fang Foom." Furthermore, the village is led by an elder named Huang Bo, who is joined by an unnamed character played by Michelle Yeoh who is merely described as "another fierce protector."

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Debuting in 1990's Iron Man # 261 by John Byrne and John Romita Jr., The Valley of the Sleeping Dragon has been Fin Fang Foom's sanctum since he and his race, the Makluans, first arrived to take over the world. Unfortunately for the dragon, a group of warriors dedicated themselves to preventing his attempts at conquest by keeping him asleep, a task which has been past down throughout the years.

Directed by Destin Daniel Cretton and written by Daniel Callaham, Shang-Chi and the Legend of the Ten Rings stars Simu Liu, Tony Leung and Awkwafina. The film arrives in theaters on July 9, 2021.

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