Antony Evans's spectacular stoppage-time winner secured a 2-1 away win for Everton that took them top of Premier League 2 Division 1.
The Toffees went ahead against Brighton & Hove Albion after just two minutes thanks to Anthony Gordon's low finish, and they led until the 89th minute.
Warren O'Hora seemed to have grabbed a late point for the hosts at the Amex Stadium when he equalised from close range.
But Evans had the final say, finding the top corner from 25 yards to take Everton top on 12 points, ahead of Arsenal on goal difference.
Brighton remain seventh with six points.
See: Brighton report | Everton report
Next fixtures
Brighton: 27 Sep v Spurs (H)
Everton: 27 Sep v Man City (H)