Erebor, The Lonely Mountain where Smaug the dragon makes his home in The Hobbit, would cost around $6 billion to buy, suggests a new housing report.
With the release of The Desolation of Smaug, the second in the film trilogy based on JRR Tolkien's book, US real estate experts Movoto have put together some fictional particulars of the multilevel property which includes an entire underground city.
The company has previously estimated the price of Hogwarts, Wayne Manor, Barbie's dream house in Malibu, and Bag End.
On the assumption that Middle Earth very generally mirrors Europe, Movoto has guestimated that the Lonely Mountain is slightly north of Kirov in Russia and is probably around 44 square miles.
To come up with the $6 billion figure, they looked at the price of undeveloped properties for sale in the area, and came up with an average figure of $54 per square metre.
Forbes has estimated Smaug's net worth at $62 billion.