England has clinched its first one-day series win against Australia since 1976 after a thrilling final-ball two-wicket win at Stratford on Friday.
With the game being reduced to 29 overs due to overnight storms, the Southern Stars battled to reach 150 and looked favourites to win when they had the hosts in trouble at 8-133.
Laura Marsh came to the crease with 18 runs still needed to win, but that was reduced to two with one ball remaining, and Marsh secured the win after she was dropped on the final ball.
After being sent in, Australia looked in trouble at 3-23, but Lisa Sthalekar (38) and Lauren Ebsary (40) rescued the innings with a 78-run stand.
England's spinners Holly Colvin and Beth Morgan halted the charge with two wickets each before Ellyse Perry clubbed 16 off nine balls to life the total to 150.
Perry then made an impact with the ball as the hosts slumped to 4-73 after Caroline Atkins' 35 gave them a solid start.
Wickets fell at regular intervals with Perry and Shelley Nitschke claiming two each before Marsh guided England home.
Australia now has to regroup for the final two matches before trying to recapture the Ashes in a one-off Test.
Australia Women innings
Nitschke lbw b Shaw 0 (7)
Poulton c Edwards b Shaw 7 (20)
Rolton b Brunt 14 (22)
Sthalekar c SJ Taylor b Morgan 38 (41)
Ebsary c Gunn b Colvin 40 (38)
Cameron c & b Colvin 0 (3)
Fields not out 17 (17)
Blackwell st SJ Taylor b Morgan 0 (2)
Farrell lbw b Marsh 10 (15)
Perry not out 16 (9)
Extras 8 (lb 3, w 5)
Total 150 (8 wickets; 29 overs)
FoW: 1-1, 2-20, 3-23, 4-102, 5-102, 6-102, 7-105, 8-119
Bowling
Brunt 6 – 1 – 22 – 1
Shaw 6 – 0 – 22 – 2
Marsh 6 – 0 – 44 – 1 (1w)
Colvin 6 – 1 – 23 – 2
Gunn 1 – 0 – 10 – 0
Morgan 4 – 0 – 26 – 2 (2w)
England Women innings
SJ Taylor c Fields b Andrews 12 (9)
Atkins c Fields b Sthalekar 35 (53)
SC Taylor b Perry 16 (27)
Edwards lbw b Perry 5 (13)
Morgan run out 18 (18)
Rainford-Brent run out 11 (13)
Brunt b Nitschke 13 (10)
Shaw st Fields b Nitschke 12 (13)
Gunn not out 11 (20)
Marsh not out 8 (8)
Extras 10 (lb 4, w 5, nb1)
Total 151 (8 wickets, 29 overs)
FoW: 1-19, 2-62, 3-70, 4-73, 5-103, 6-108, 7-122, 8-133
Bowling
Andrews 6 – 0 – 31 – 1
Farrell 6 – 0 – 28 – 0 (2w)
Sthalekar 6 – 0 – 28 – 1
Perry 6 – 0 – 31 – 2 (3w)
Nitschke 5 – 0 – 29 – 2 (1nb)