Los Angeles, California - "Dragons are coming!" HBO announced shooting on the prequel to the successful fantasy series Game of Thrones will begin in the coming year.

HBO broke the big news on Twitter.

The new series will be called House of the Dragon. HBO also published two concept pictures of dragon figures along with the post.

Not much else is known about the upcoming series.

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The plot will be based on the book Fire and Blood (2018) by author George R. R. Martin (72). The novel covers a span of 150 years and takes place three centuries before the events described in Game of Thrones.

Fans speculated on which aspects of the book will appear in the TV show. Insiders have already confirmed that the Targaryen Civil War will feature prominently.

Casting for the new prequel is already underway, but fans will have to wait to hear who will star in the series.

People magazine reported that Martin will be involved in the writing and production of the show, acting as co-creator alongside Ryan Condal.

House of the Dragon is set to air in 2022.