Substitute Sam Deering struck twice as Barnet fought back from two goals down to claim an unlikely 2-2 draw against runaway leaders Chesterfield.
Deering levelled matters in bizarre fashion in the third minute of added time when his attempted cross eluded Spirites' goalkeeper Tommy Lee and nestled in the bottom corner.
Chesterfield took the lead in the 21st minute when Dean Smalley was on hand to tap in after Craig Davies' effort had been well-saved by Barnet goalkeeper Sam Walker.
Dean Morgan should have doubled their advantage when he was put clear by Davies' flick-on, but he could only slide his shot wide of the far post.
Davies' first-time effort from the edge of the area 27 seconds into the second half flew past Walker and into the top corner to make it 2-0 to the visitors.
But Barnet were back in business soon after when substitute Deering dispossessed Dean Holden before unleashing an unstoppable rising drive from 25 yards.
Barnet continued to press and were extraordinarily rewarded at the death when Deering's cross from the right somehow went in.
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