Rugby Town slipped to their first defeat of the season and in the process out of the FA Cup away to Midland League counterparts Stone Old Alleynians.
After making a strong start to game which saw Dylan Parker open the scoring for the visitors, Stone punished Rugby for a sloppy ten minute spell at the end of the first half - scoring three goals.
Valley rallied in the second half and got a goal back through Parker on the hour mark but while pushing for an equaliser Stone caught Rugby on the counter attack to finish the game off and end the FA Cup dream for another season.
Carl Adams named an unchanged lineup for Valley from the victory at Godmanchester Rovers and they carried on where they left off seven days previous in the opening exchanges. Inside five minutes, David Kolodynski neatly flicked a pass into the path of Parker in the box and the forward found the corner with a low angled finish.
Kolodynski lobbed an effort over the crossbar moments later, Danico Johnson then failed to get enough power behind a volley and Liam Francis headed over from close range as Rugby pressed early on to double their advantage.
Parker then missed the easiest chance of the lot when he blazed over after Kolodynski had again found him in the area.
Stone finally kicked into life after twenty minutes as a mishit cross from the right flew over Ben Newey and onto the woodwork before Jack Tomlinson dragged a half chance wide.
The hosts were soon level on the half hour mark when a quick throw in got Sam Wilson in behind on the right and his cut-back was converted from close range by Tomlinson.
Just a few minutes later Stone had turned things around much to Valley’s discountenance as captain Loyiso Recci appeared to be pushed in the back outside his own area but with no referee’s whistle for a foul the hosts wasted no time in crossing into the box allowing Lucas Baker to find the net after a knockdown.
Things went from bad to worse when Rugby’s lacklustre approach was further punished as Sam Wilson added a third just before half time when he ran off the right and finished past Newey.
Rugby came out firing in the second half with Francis forcing a good point-blank save with a close range header as Valley forced a succession of corners.
The pressure told as Parker got a goal back when he nodded the rebound into the net after Melu Mpande’s low shot from 20 yards had been parried into the air.
Mpande was having joy down the left and he almost saw his cross converted by Parker but it was deflected wide.
Substitute Justin Marsden saw an effort well closed down by the goalkeeper after Kolodynski had slipped him in before Danico Johnson looked to be set clean through on goal before a desperate lunging tackle came to the rescue for Stone.
The killer blow came with ten minutes remaning when Valley were caught on the break and the diminuative Sam Bowater found the net at the second attempt after Newey had saved the initial shot.
The shock of the fourth goal just about did it for Valley’s efforts and they failed to summon up a real response as Stone kept up their unbeaten start to the season to progress.
Valley Line-up: Newey; Rosser (Omar Recci), Mpande, Loyiso Recci, Francis; Hancocks (Revan), Max Johnson (Marsden), Fitzharris; Parker, Kolodynski, Danico Johnson. Subs not used: Lee Thomas, Hayward. Booked: Loyiso Recci.