I loved everything about this. I was nervous about Tommy (he's a PEELER?!) but I should have trusted Sarah would give us exactly the character arc he needed. Imogen has always been a delight - her love of chemistry, loyalty to her friends, confidence in her abilities - and Tommy is an excellent foil to her, starchy where she's uninhibited and quiet where she's chaos. We get explicit declarations of fidelity (my heart!!), loads of caretaking and touch-her/him-and-you-die energy, and some absolutely fantastic moments with the Belles. 

And the epilogue?! GIMME DUCHESS'S BOOK YESTERDAY