The script for Amazon's new Lord Of The Rings series is so heavily-guarded that its locked in a windowless room that requires fingerprint access to enter.

Amazon Chief Jennifer Salke was speaking with The Hollywood Reporter about the online giant's future plans for its content when she revealed the measures used to keep the hotly-anticipated show's storyline a secret on Wednesday.

When asked if she could tell readers anything about the $1 billion TV adaptation of J.R.R Tolkien's novels, she said: 'There’s a fantastic writers room working under lock and key. They’re already generating really exciting material.

Lord Of The Rings: It was revealed on Wednesday that Amazon's $1 billion TV series' script is so heavily-guarded it's kept in a windowless room which requires FINGERPRINT ACCESS to enter

'They’re down in Santa Monica. You have to go through such clearance, and they have all their windows taped closed.

'And there’s a security guard that sits outside, and you have to have a fingerprint to get in there, because their whole board is up on a thing of the whole season.'

While little is known about Amazon's Lord Of The Rings TV show, rumours are swirling that the fantasy spin-off will centre around the life of Aragorn, played in the films by Viggo Mortensen.

Tougher to get into than Sauron's tower: Amazon Chief Jennifer Salke revealed that writers work in a locked room, with all the windows taped closed, and a security guard outside

Dedicated fans of the J.R.R Tolkien series believe that the series will mainly focus on the Ranger Of The North as the TV giant confirmed the show will take place before the events of the award-winning franchise.

Due to the story's timeline, fan site TheOneRing.Net explained it's unlikely that the actor, 59, will reprise his role as the character.

In a series of highly-detailed tweets, the fan base highlighted that Tolkien's mammoth back-catalogue of different stories and appendices will give Amazon extensive material to work with.

After confirming from 'multiple sources' that Aragorn will take centre stage on the show, the fansite tweeted: 'From the first press release, we know this so-called #LOTR series will NOT be a retelling of the events of the War of the Ring. #BeenThereDoneThat'

Potential focus: While little is known about the TV show, rumours are swirling that the fantasy spin-off will centre around the life of Aragorn, played in the films by Viggo Mortensen

'Instead it will be Appendices based and cover a lot of time and history. This is the greatest advantage the show runners have: that so much of Tolkien's storytelling, even just in 'Appendix A,' covers a tremendous swath of time.

On what Amazon may choose to do with the King of Gondor, the fans continued: 'Starting with a young Aragorn narrative allows connections to his Numenorean bloodline (and to the founding of #Gondor)'

The Lord Of The Rings film series - released from 2001 to 2003 - is one of the highest-grossing movies in history, raking in an estimated $2.8 billion worldwide.

And Amazon's upcoming TV edition is set to follow suit as the hotly-anticipated show will become the most expensive series of all time, according to The Hollywood Reporter.

The series - which is expected to cost $1 billion - has knocked rival business Netflix's hit show The Crown off the top position, which was created with a whopping budget of £100 million.

Amazon has been given a multi-season order to the series, which was confirmed in November last year.

The Tolkien estate, HarperCollins and New Line Cinema defeated Netflix in a $250 million rights deal, based on the terms to create five seasons.

In addition to the strict agreement, the show must be in production within two years.