CONFERENCE top scorer Guiliano Grazioli couldn't get past Accrington Stanley, but unfortunately for the Reds his team-mates could.
The Bees hitman has fired home 12 goals this season but they showed they weren't a one-man team as the pacesetters maintained their four point lead at the top of the table.
But for Stanley it was agony as they slid from third to sixth following the loss, made even worse by the fact they had a perfectly good goal disallowed.
Manager John Coleman was furious as the assistant referee's flag denied one of their own dangermen Ian Craney after he had found the back of the net - and that would have made it 1-1 and put a whole new complexion on the game.
Barnet had already taken the lead as Simon King's 35-yard effort squirmed into the bottom of the goal beyond diving debutant keeper Paul Crichton on 21 minutes.
But then, on 54 minutes, Lee McEvilly's fierce drive was touched out by keeper Scott Tynan, who had a trial at the Interlink pre season, and into the path of the inrushing Craney. He tucked the ball home only to look up and see the assistant referee flagging for off-side.
Four minutes after that, the tricky Richard Graham fired home from the edge of the area and put the game out of Stanley's reach before they added a late third.
Reds boss John Coleman, said: "We feel hard done by. It was the equaliser - it was a really good goal but the way things are going for us at the moment, we just don't get those decisions.
"Nobody has appealed for off-side. The ball has come out a hell of a long way, around 14 yards, when Ian has put it in. He is certainly not standing there, he has run into there and you won't see many of those decisions given in a season, and unfortunately we get that one against us. I would say it cost us the game.
"It is hard to take but we have got to get on with it.
"But, they are a good side and they are one of the best sides we have played this season. But they haven't mullered us and the scoreline flattered them.
"We have just got to keep playing like that and we will win more away games than we lose, and we could play worse than that and still win. Peter Cavanagh and Robbie Williams were magnificent and they certainly didn't deserve to be on the losing side."
It was always going to be tough at Underhill against Barnet, who have raced to the top of the table, have lost just one league game and are one of the favourites for a return to the Football League.
Coleman started with the 11 who thumped Northwich, just swapping new signing Crichton for Danny Alcock.
But Barnet had the advantage of the downhill slope in the first half and tall striker Liam Hatch was a tricky customer while winger Graham made some surging runs forward.
And they took the lead when defender King was allowed time and space to charge forward and fire home the opener.
For Stanley, Craney had a couple of long range efforts while he did well to steal the ball off the Barnet defence on 33 minutes and it bounced to Paul Mullin but, with only Tynan to beat, he agonisingly chipped wide from 15 yards out.
Stanley have never won this season once they have gone behind but they started getting on top after the break, with the advantage of the slope and there was more agony when Craney's "goal" was disallowed.
While the Reds were still feeling hard done by, Barnet pounced with Dean Sinclair setting up Graham on the edge of the area and he fired low with the ball hitting the inside of the far post and finding the back of the net.
The Reds kept pressing to find a way back into it with Mullin having the best chance in a lively spell but he headed wide from a Chris Butler cross.
The game was becoming increasingly stretched as the Reds went in hunt of a goal and the Bees were quick to break and pile pressure on the Stanley backline.
On 67 minutes, Grazioli broke through and looked like he could make it 13 for the season, although Robbie Williams was tracking him, but he surprisingly fired wide.
Defender Ismael Yakubu headed over at the far post when it looked easier to score for the home side and then Grazioli's volley was well saved by Crichton before the hitman again burst into the box unmarked on 75 minutes, but again was off-target.
Ben Strevens then headed wide for Barnet but it did look like Stanley had got on the scoresheet on 82 minutes. Butler played in an accurate free kick with Mullin sliding in a couple of yards from goal but somehow his shot hit the keeper and bounced out for the Reds first corner of the game - much to Coleman's dismay.
And Craney came close with a late 25 yard curling effort which was just over the crossbar as the Reds never gave up.
But then a mix-up led to Barnet's third. Mike Flynn flicked a header back to Crichton following a Graham ball in but it looped over the keeper and hit the crossbar and bounced down, with Hatch rushing in to touch the ball over the line to claim it for his seventh of the season.
The Reds manager said: "That was a freak goal. When things are going for you, as they are for Barnet at the top of the league, these things happen for you. When things are going bad, like they are for us at the moment, they go against you. We are just not having much luck."
And the boss is frustrated for his eight-goal top scorer Mullin who is desperate for a goal after seven games without finding the back of the net.
Coleman added: "I would love to go out and buy a goal for Paul Mullin because that is what he needs. He missed that chance from a yard out and that would have made it 2-1 and you get the feeling that we would have come back, but it wasn't our day. We had scored a good goal in our eyes and were on top and that's why it is sickening. In hindsight perhaps we could have been more cynical and brought him (Graham) down on the edge of the area.
"But I am a firm believer that if you work hard you will get your rewards and we will keep working hard.
"It will be a different story when we play them at home, we might get the rub of the green on our pitch. They are a good side but we just need a couple of goals and some confidence and we will see how they get on when they visit us.
"I'm very confident we can make the play-offs."
Barnet manager Paul Fairclough, meanwhile, was relieved his side saw off Stanley: "It was a massive result. It was an excellent result against a strong Accrington Stanley side."