Blackstones were knocked out of the FA Vase on Saturday in the first round, undone by a second half come back by Haughmond at Lincoln Road.
Stones squandered a two goal lead at the break to lose the tie 3-2 in extra added time to the West Midlands League Premier Division side.
Blackstones started brilliantly and got their reward in the 21st minute when the excellent Jones De Sousa made the breakthrough.
Matt Simpson and Jordon Avis attacked down the left flank before firing a cross into the box which the diminutive De Sousa fired home.
Haughmond almost made an immediate response when Dave Howarth swung a corner into the box which no one on either side dealt with. The ball bounced up and struck the bar and out to safety. The visitors were beginning to impose themselves and had a couple of half chances snuffed out.
But Blackstones almost doubled their lead in stupendous fashion, Sam Strange pulled out his pithing wedge and tried to chip the Haughmond goal keeper Sam Jones from 25 yards outs. The visiting custodian was completely stranded but the ball bounced off the cross bar. Close.
However minutes later Avis got on the scoresheet, finishing a cross from De Sousa for a 2-0 lead at half time.
But the visitors came out with more intent and more of a cutting edge.
The Blackstones defence was being increasingly tested as Haughmond created chances. It was only a matter of time until the visitors found a way through and shortly after the hour mark they struck twice in three minutes to level the scores, first through Steve Hole and then Dave Howarth
There was still time for scares at both ends of the field. Adi Staffieri shot just wide for the hosts and then Stones keeper Lee Crockett pulled off a fine save to deny Howarth when he got clear of the defence.
It was more of the same end-to-end stuff in extra time, Stones blocking shots from Haughmond and Scotcher seeing a shot saved at the other end.
In the end it was Haughmond and their top scorer Hole who won it five minutes into the second period of extra time, heading in a cross from Renshaw to wrap up the scoring in a scintillating cup tie.
Blackstones will now turn their attention back to the UCL Division One on Saturday when they travel to Northampton ON Chenecks.
Blackstones: Lee Crockett, Adam Sparks, Matt Simpson, Calum Parker, Jacob Smitheringale, Carl Griffiths, Jordan Avis, Sam Strange, Adi Staffieri (Adam Scotcher), Scott Ginty (Dan Evans), Jones de Souza (Nicky Butler). Subs unused: Jack Salt and Liam Butler.
Haughmond: Sam Jones, Ben Matthews, Dan Perry, Alex Johnson (Darren Beech (Matt Burton)), Craig Frar, Scott Graham, Kevin Renshaw, Tom Hewitt, Steve Hole, Carl Rogers, Dave Howarth. Unused subs: Dan Williams, Dan Manders, George Taylor.