Steve Toussaint as Corlys Velaryon in "House of the Dragon" season three.

Ollie Upton/HBO

"House of the Dragon" fans have been anxiously awaiting more action from HBO's tentpole "Game of Thrones" spinoff — and their wish may be granted much sooner than later.Ahead of the season three premiere on Sunday, "House of the Dragon" co-creator and showrunner Ryan Condal has been teasing the Battle of the Gullet, described in the original book "Fire & Blood" as one of the "bloodiest sea battles" in Westerosi history."To try to tell this story without doing the Gullet would be trying to film 'Lord of the Rings' without doing the Battle of Helm's Deep," Condal told Entertainment Weekly. "If we were gonna do it, we had to do it right. And that meant dragons and ships and multiple theaters of conflict."Condal also said that in terms of expense and execution, the impending Gullet sequence makes for "arguably the craziest episode of television ever made."Of course, fans of George R. R. Martin's fantasy world are no strangers to spectacle and violence; think of Princess Rhaenys Targaryen's fiery death in "House of the Dragon" season two, the epic Battle of the Bastards in "Game of Thrones," or the many, many men that Daenerys Targaryen burned alive.But the Battle of the Gullet isn't just about expensive sets, special effects, and sacrificial background actors. It's a crucial turning point in the Targaryen civil war, also known as the Dance of the Dragons, and proves deeply consequential in the grand scheme of the dynasty.Here's what happens in the book when naval forces and dragonriders collide. (Obviously, spoilers ahead for "Fire & Blood" and potential spoilers for "House of the Dragon" season three.)