Rumour has it* that Charlotte Edwards was at The Oval today (Ed: is she following us around?) although she didn’t actually prove visible to the naked eye – much like some of the balls in Lauren Filer’s opening spell.

After winning the toss under blue skies at The Oval, Durham had posted 256 for 8. A skipper’s knock of 106 from Hollie Armitage, a nifty half-century from Mady Villiers and a handy back-end cameo of 18 not out off 10 balls from Sophia Turner all played a role.

But it looked to be well light of a competitive total on a belter of a wicket at The Oval. That is, until Filer began her work.

It’s a bit of an open secret that Edwards has not yet settled on her World Cup Fifteen – hence pulling all the England contracted players out of the One-Day Cup earlier this week for an intra-squad camp. Some big decisions lie ahead, including what is likely to be a three-way fight for one spot in the World Cup squad between Filer, Issy Wong and Em Arlott.

Over in Chelmsford, Wong (0-21 off 4 overs) was being pummelled by Grace Scrivens, while Arlott (2-14 off 5) was economical but unspectacular.

Meanwhile here in Surrey, Durham’s powerplay bowling exactly epitomised Edwards’s dilemma: go with the safe option of Arlott, or throw caution to the winds and opt for the ferocity of Filer?

Filer started with an erratic no-ball beamer which hurtled over the fine leg boundary, costing a sum total of five runs. She also fell over in her follow-through three times in as many overs – a worrying habit which England confidently claimed last year that they had cured her of.

“The first couple of overs was a bit of a pick and mix,” Filer said afterwards. “I said to Hollie [Armitage], ‘I’m sorry mate, I’ve probably not bowled as straight as I can’ – but the balls that did go straight were wickets. So it was just taking the confidence from those balls into future overs.”

She blamed her falls on “a big divot in the foot holes” and joked: “It’s not Lauren Filer if I don’t fall over.”

In fact, the Surrey top-order looked genuinely frightened of her pace: a fear which translated into figures of 3 for 13 in her first three overs. Paige Scholfield and Alice Davidson-Richards both had their middle stumps pegged back; in between, Alice Capsey was hurried into a drive and got an edge behind – albeit reliant on a fantastic diving catch from Tahlia Wilson to pouch it.

Just how quick was Filer bowling in the powerplay? There was no speed gun in operation, but Filer reckoned: “There were a few balls that were pretty up there.” (A reminder that for Filer, that means high 70s – she’s apparently been clocked at 80mph in training.)

Kira Chathli fought fire with fire, pulling and crunching Filer’s next over for 14 runs. But when the England quick returned for a second spell, Armitage tapped Filer on the shoulder and indicated that she should put in a deep square leg. Sure enough, Chathli sent one down her throat, handing Filer a fourth wicket and Armitage some field-placement bragging rights.

Filer often only looks dangerous when fresh, so perhaps the most interesting part of today was that her third spell (which consisted of two overs, the 29th and 30th) proved almost as threatening as her first. She basically bounced out the 19-year-old Jemima Spence, who tried to keep her body out of the way while waving her bat around, and was bowled.

The upshot of it all was that Filer finished with 5-59 – a List A best.

Of course, a typically aggressive innings from Danni Wyatt-Hodge eventually saw Surrey win by 3 wickets, picking up a bonus point in the process. But if Filer earns selection in a home World Cup on the back of today, maybe she’s the real winner?

The question, as ever, is whether the guaranteed risk is worth the possible reward. Only one woman knows the answer – and for now, she is keeping her counsel.

*Later confirmed by Filer after the match.