The Great British Bake Off's first ever Halloween Week saw Dawn leave the tent after her Showstopper bake was branded too "basic".
The 60-year-old IT manager was in the bottom two bakers with music teacher Kevin after her cat-shaped biscuit lantern filled with jelly eye balls was described as "messy" and "basic" by judge Paul Hollywood.
Dawn said: "Game over. I really don't want shed a tear, because it's been one of the best experiences of my life.
"I'm really proud of what I've done because it's been such fun."
Announcing Dawn would be going home host Matt Lucas admitted the presenters and contestants had all grown very close and said, "She will be really missed."
Noel Fielding gathered everyone around Dawn for a group hug.
The eldest remaining contestant had a disappointing Signature round, as the judges were dissatisfied with the flavours of her apple cake.
After coming fifth in the Technical challenge of making S'mores, Dawn admitted she knew she was in danger of being sent home, saying "The competition is just so fierce."
Dawn had been unsure if her lantern would even hang without breaking, and Prue Leith said of her decorative filling: "The jelly eyes are beautiful but because it's unsweetened it's just texture."
Dawn confessed: "I'm bracing myself. I'm trying to get my head around the idea I might not come back next week."
Kevin said he thought leaving the tent was a "foregone" conclusion after he produced a saggy apply cake which Hollywood said tasted "amazing" if it had been a trifle, but added: "We wanted a cake though."
The teacher's spider lantern was also dubbed messy with Hollywood warning him: "The whole thing just needed more time, more effort."
Cardiovascular research assistant Syabira, 32, was declared Star Baker for the first time, with Hollywood admitting none of the other bakers even came close to her that week.
Leith said "She's unstoppable."
But while they were wowed by her "astonishing" spider lantern and peanut cookies, both judges did not enjoy the flavour of her white truffle biscuits.
Leith told her: "Syabira you're off your head! Orange and truffle does not go in a biscuit!"
Sabyira said: "I really am grateful to be Star Baker. But that's a scary place to be - because the only way is down.
"I'm really sad to see Dawn go, she is funny and I love her."
Watch: Former Great British Bake Off contestants reveal who they are tipping to win this year