Spireites lost a 3-1 lead to bow out of the Capital One Cup to Huddersfield Town in an extra-time humdinger, with the game turning on a soft penalty decision six minutes from time.
Ritchie Humphreys opened the scoring with a text book header before, in first half stoppage time, Ollie Banks marked his return to the fray after injury with a crackerjack.
Nahki Wells pulled one back before Eoin Doyle made it two in two with 19 minutes remaining in what was a great cup-tie.
Wells scored from the spot late on after Tendayi Darikwa was harshly adjudged to have tripped ex-Blade Jon Stead, and then Stead saw a soft shot squirm through keeper Lee to extend the game - his sixth goal in his fifth game against Spireites.
Wells completed his hat-trick in extra time, poaching well after Stead’s shot was parried by Lee, and sub Joe Lolley compounded the misery after 98 minutes.
With Liam Cooper absent, having agreed terms with Leeds United, Ian Evatt got off his sick bed to play with Sam Hird coming in for the former Hull City man.
No fee has been disclosed for the 22-year-old but it will be approaching £1m and Paul Cook hopes to be able to sign three new faces on the back of the move.
One of those could well be non-contract raider Romy Boco who scored the season opener in the 2-1 win at Orient, and started here against the Championship visitors.
Spireites took the lead on 32 when Dan Jones, gifted acres of space on the left, crossed perfectly for Humphreys to head a classic goal.
Danny Ward and Wells both forced Lee into goal saving action before Humphreys limped off to be replaced by Banks, his first appearance since picking up an injury in March at Wembley.
And Banks’ first kick, after a short pass from Sam Morsy, saw him lift the ball gloriously over Murphy from 25 yards, an early Goal of the Season contender.
What a way to announce you’re comeback!
Seconds after Daniel Johnson came on for his Spireites debut, Wells put Huddersfield back in the game with a fine header.
And Sean Scannell almost levelled moments later when his long range effor was deflected wide as the visitors turned up the heat.
Doyle re-opened the two goal gap when he stabbed in after Murphy’s intervention from a Roberts cross after some fantastic work on the left by last season’s League Two Player of the Year.
But Wells’ spot kick ensured the game remained a contest and two minutes into stoppage time, Stead’s half-baked shot inexplicably slipped under Lee’s body for an unexpected and undeserved leveller.
Wells, the former Bradford man, showed just why Huddersfield paid £1million for him when he bagged his third, before Lolley took advantage of a mix up between Darikwa and Lee to completely transform the cup-tie and break home hearts.