The Sydney Roosters have won a maiden NRLW title, coming from behind to beat St George Illawarra 16-4 in Redcliffe.
The Dragons scored in the first minute and then defended mightily until Yasmin Meakes and Isabelle Kelly crossed in the second half.
Hooker Olivia Higgins then sealed the result, skipping out of two tackles and finding space for her maiden NRLW try.
Victory in front of 7,855 rowdy fans followed a comeback from 16-0 down against three-time defending champions Brisbane last week.
And they only just qualified for the final four, jumping from fifth on points difference thanks to the result of the final game of the regular season.
It was the Roosters' first win in a third grand final appearance.
Free to play after winning a judiciary battle earlier in the week, Roosters prop Sarah Togatuki was instrumental for the victors and a deserved winner of the Karyn Murphy Medal for best on ground.
Dragons fullback Emma Tonegato set up Madison Bartlett for the first try but was otherwise well contained by Kelly and fellow centre Jess Sergis.
Roosters winger Brydie Parker left the game in the 19th minute, collapsing with an apparent knee injury and copping Taliah Fuimaono's shoulder to her face on the way down.
Fuimaono was sin-binned and Parker ruled out with what's feared to be an ACL tear.
But her side couldn't exploit the one-player advantage, the Dragons' scrambling defence holding firm in the playmaker's 10-minute absence.
A Roosters knock-on in the game's first set gave the Dragons an early look and Tonegato needed no further invitation.
She darted from the scrum base, drawing two players to release winger Madison Bartlett who scored in the left corner.
Those were the only points in the first half though, the Dragons producing four separate efforts to either hold up or push a Roosters player into touch.
They looked to have skipped out further when, in a rare return to Roosters territory, Keely Davis collected her own grubber kick and scored under the posts.
Replays showed a knock-on though, crucially denying the go-ahead try in the shadows of halftime.