Nationals Park will look and feel a bit more like Westeros, the fictional continent from the popular HBO series based on George R.R. Martin’s novels, when the Nationals host the Reds on “Game of Thrones” Night on Friday.

Ahead of the event, the Nationals will hide 10 prize-filled “dragon eggs” in D.C., Maryland and Virginia. A Westeros-themed map posted on the team’s social channels and in The Washington Post Express on Tuesday morning will guide fans to the eggs, which contain a Nationals and “Game of Thrones” co-branded T-shirt, two tickets to Friday’s game and a fast-pass to pose for a photo on the 800-pound Iron Throne that will be located in the Right Field Plaza.

Fans who don’t find an egg may wait in line to sit on the Iron Throne, and the first 20,000 people through the gates will receive the co-branded T-shirt, which features “Game of Thrones”-inspired banners for nine Nationals players. Large versions of these banners will be hung throughout the park, and the scoreboard will feature “Game of Thrones”-themed headshots, videos and games. Expect to hear the “Game of Thrones” score, which Jayson Werth has used as one of his walk-up songs for several years, even if the Nationals’ left right fielder isn’t activated from the disabled list by Friday.

Fans are encouraged to come dressed as their favorite “Game of Thrones” characters, but must leave their Longclaws, Needles and other props resembling weapons at home. Adults are not permitted to wear masks, except when in their seats, and fans in the best costumes may be eligible for prizes.

The Racing Presidents will wear different-colored cloaks with faux fur designed by Ingrid Crepeau, the same woman behind the elaborate costumes that the Racing Presidents have worn on “Star Wars Day” since 2015. Teddy and George showed off their costumes at AwesomeCon in D.C. over the weekend. Screech will be dressed as his favorite “Game of Thrones” character, the three-eyed Raven.

The Nationals are one of 20 MLB teams hosting a “Game of Thrones”-themed night as part of the league’s cross-promotional partnership with HBO. The seventh season of the hit series premieres July 16.