Her Gallant Captain at Waterloo (Captains of Waterloo, 1)

Her Gallant Captain at Waterloo (Captains of Waterloo, 1) by Gaston, Diane. mass_market edition. ISBN: 9781335506009.

From vicar’s son To captain of her heart! Lady Helene Banes travels to Brussels to bring her battle-seeking younger brother home, only to collide with Rhys Landon, her ex-fiancé! Gone is the penniless vicar’s son, now transformed into a combat-hardened captain. The spark still burns between them, but Rhys has a new love now—the army. Until, on the eve of battle, with Napoleon’s troops advancing, the emotional turmoil of their past explodes into a night of passion! From Harlequin Historical: Your romantic escape to the past.