Aus now lead series 6-4 on points
A draw keeps the series alive
Eng resumed on 40-0 (trailing by 128)
Aus 448-9 dec (Perry 213*); lead by 168 on first innings
Inaugural day-night women's Test
North Sydney Oval; England won toss
Minimum 42 overs left
Time for a seventh Australian bowler - it's captain Rachael Haynes, with some left-arm medium pace, bowling round the wicket. She has taken two Test wickets in four previous appearances. But it's easy pickings for her opposite number Heather Knight, cracking a four through the covers.
Knight 27, Elwiss 21
After a long period of spin, Australia turn back to Tahlia McGrath's medium pace. She has 1-12 from nine overs so far, having taken the important wicket of Lauren Winfield who was trapped lbw in the first session of the day. Maiden over.
Charlotte Edwards
Ex-England captain on BBC Test Match Special
For me, the best thing they've done with the Women's Ashes is introduce the multi-format series. It's done wonders for the game.
Trail by 38
Knight guides Wellington for two to deep mid-wicket, then sets off for a third when Elwiss hadn't moved... thankfully for England, the skipper is able to regain her ground.
Charlotte Edwards
Ex-England captain on BBC Test Match Special
I just sense that England may be a little bit more attacking after that drinks break. Maybe?
Minimum 45 overs left
Jonassen, whose first 12 overs have cost just 16 runs, sends down a maiden to Elwiss, to make the aforementioned figure 16 in 13.
Knight 25, Elwiss 21
England's tactics are fairly clear, but you can understand why it's been a largely safety-first approach after losing their openers.
Post-drinks, Elwiss steers Wellington through the covers for the first boundary for 86 minutes. She's nearly caught her captain up.
Eng 122-2
Jonassen is now bowling her left-arm spin from over the wicket, in the manner of Ashley Giles. Knight sweeps a single, and England have made it through to drinks.
And considering the England score - 122-2 - here's a picture of some spectators from Friday...
Image source, EPAMarvellous!
Mel Jones
Former Australia batter on BBC Test Match Special
Heather Knight looks like she could still be batting here on Thursday.
Knight 23, Elwiss 16
Wellington is back bowling over the wicket, a misfield or two allows England some unearned runs, and the deficit is down to 49.
Remember, if Australia win, they retain the Ashes. A draw keeps the series alive. (And in the realms of fantasy, an England win makes it even more interesting. But that won't happen).
Mel Jones
Former Australia batter on BBC Test Match Special
My cousin's child is a big Heather Knight fan, I mentioned it to Heather during the World Cup, and she handed me over a shirt today. So she remembered!
Minimum 49 overs left
After four unthreatening, but tidy, overs from Nicole Bolton, Australia turn back to their front-line spinner Jess Jonassen, and Knight breaks the deadlock with a driven single to mid-on.
We're just over halfway through the day in terms of minimum overs, but if Australia keep bowling spin, they may well get more overs than the bare minimum in.
Mel Jones
Former Australia batter on BBC Test Match Special
The 12th man just ran on with a drink for captain Rachael Haynes. Now, I don't doubt Haynes may be a little thirsty, but I'd suggest the drink probably came with a message from the coach Matthew Mott.
Trail by 51
If you're just joining us, the ball of the day was bowled by Amanda-Jade Wellington who produced a leg break which pitched on leg stump and hit the top of Tammy Beaumont's off stump. Australia would like a few more of those, but for now England are negotiating her wrist-spin well. There will be a new ball available in 13 overs' time.
Knight 20, Elwiss 15
Bolton in for her fourth over, it's a maiden over and with her tiny run-up, it lasts little more than two minutes.
Mel Jones
Former Australia batter on BBC Test Match Special
Please can any young girls listening go outside and practise bowling left-arm wrist-spin. And I'd like a couple who can bowl at 130kph (80mph) too.
Minimum 52 overs left
Elwiss is finding the gaps pretty well, while Knight reaches a century of one sort - she's survived 101 balls for her 20 not out.
Trail by 53
Knight drives Bolton to deep cover for a single, Elwiss moves to 14.
This isn't pretty, or particularly entertaining, but England are doing what's necessary.
Mel Jones
Former Australia batter on BBC Test Match Special
Heather Knight is a world-class player with a wonderful temperament and solid defence. She's done this before against Australia - scoring 157 in 2013.
The other option Australia have is Rachael Haynes with her left-arm medium.