BRIGHTON substitute Kazenga LuaLua struck two minutes from time to deny Millwall victory on their first visit to the Amex Stadium.
Whereas the stalemate with Derby at the weekend felt like a point gained for the Lions, this was certainly a case of two dropped as goalkeeper David Forde allowed LuaLua's free-kick to squeeze past him at the death.
The visitors had gone ahead in the 23rd minute courtesy of Andy Keogh's first goal for the club, but were pegged back early in the second half by Sam Vokes' close-range finish.
However, Liam Feeney was on hand to put the visitors back in front with his second goal in three matches when Seagulls 'keeper Peter Brezovan misjudged Darius Henderson's 64th-minute cross.
But Kenny Jackett's side were unable to see the game out, and were forced to settle for a point after LuaLua drilled home at the death.
Brighton: Brezovan; Calderon, Greer (c), Dunk, Mattock; Jara Reyes (Agdestein 75), Bridcutt (LuaLua 85), Navarro; Mackail-Smith (Noone 57), Vokes, Barnes.
Millwall: Forde; Dunne, Robinson (c), Lowry, Barron; Smith; Feeney, Trotter, Mason (Wright 63), Keogh; Henderson (Kane 74). Subs not used: Mildenhall (GK), Henry, N'Guessan.