Fans of Eloisa James & Julia Quinn discussion

Hero stared at her, incredulous, as if unable to tell if she were mocking or serious. "A scholarly retreat? To study...what?"
"We have prepared an extensive list of subjects."
"No doubt. With a change of dress for each one, I'm sure."
She shot him a murderous glare. "We are quite serious about this, Hero."
"Oh, come. What about Lord Somerton? Does he look kindly on his wife's absence? And your poor sister, languishing away in study when she should be finding a husband?." Hero crossed his tweed arms and grinned. "It's madness."
Her blood began to rise. As if her duty to Lilibet and Abigail weren't what brought her here in the first place! "No more so than your plan."
"I'll wager you don't last out a month."
"I'll wager you've packed your trucks within a week, Hero. You, without a skirt to chase? Penhallow, bending his brain to Greek philosophers?" She tilted her head in Mr. Burke's direction, not daring to look him full in the face. "Poor Mr. Burke will be left quite to himself, though I daresay it will suit him very well."
"Rubbish," said Hero. "Ladies have their virtues; indeed, no one admires the sex more than I do, I assure you. But the ability to conduct protracted philosophical study, away from the charms of social life, is not, I'm afraid among them."
"Quite the opposite," Heroine said. "Men, as your own life amply demostrates, cannot easily control their baser impulses. Women would make far better scholars, if allowed the opportunity."
Hero leaned towards her. "Name your stakes, then."
"My stakes?"
"You mentioned a wager, Heroine."
"Are you quite serious?" she demanded.
Lord Rolnad broke in. "Oh, I say. Hardly cricket, old man, wagering with a lady."
She made a brushing movement with her hand. "Don't bother, my dear. We've left all that civilized rubbish back in England, haven't we? No, I like Hero's proposal immensley. It makes things matter."
"My sentiments exactly," said Hero. "As I said, what are your stakes?"
Heroine ran her thumb along the length of her spoon. She had the sudden and deeply vexing impression that she'd been baited, and expertly. "To the party that remains at the study the longest: a forfeit" -she hesitated- "to be determined later."
"A lady's trick." The Hero rolled his black eyes. "Naming the forfeit after the wager's won. It should mean something, Heroine."
Oh, damn. What had she done? Wagers had a fatal habit of becoming public knowlege, and public knowlege was the last thing she need just now. She'd gone to great lengths to keep their departure from England, and their destination, a secret. "You don't think pride's a sufficient motivation?" she asked, trying to edge herself back from the brink. "Must there be money involved?"
Mr. Burke's voice intruded, with quiet authority, hardly more than a whisper. "Nobody said anything about money, Heroine.

Hilarious!

I have read this. Now if I could remember the name of the book.
It's sort of an update of Loves Labor Lost

A hero in tweed and a heroine whose sister has a silly name (Lilibet)... Certainly a farce, but a well-written one.

I loved the hero in this one particularly, and the author is another great debut author in what I think has been an amazing year for debut authors.

I agree, Janga!

The answer is: A Lady Never Lies by Juliana Gray

Yep. Just couldn't remember the name.