Mischief by moonlight

the long version

"Colin Pearce, the Earl of Ivorwood, never dreamed he'd desire another man's fiancee, but when his best friend goes off to war and asks Colin to look after the bewitching Josie Cardworthy, he falls under her sparkling spell. Josie can't wait for the return of her long-absent fiance. If only her beloved sister might find someone, too...someone like the handsome, reserved Colin. A gypsy's love potion gives Josie the chance to matchmake, but the wild results reveal her own growing passion for the earl. And though fate offers them a chance, a steely honor may force him to reject what her reckless heart is offering"--P. [4] of cover.