Temptress in Disguise by Adele Clee

Aramis Chance has a reputation to uphold. When a man is dark, brooding and as dangerous as the devil, everyone must fear him. So, when Aramis is kidnapped by a demure young woman wielding a pistol, he’s certain it’s a prank. No one would dare risk his wrath, which is why he’s convinced his brothers have hired an actress to test his mettle.
Miss Naomi Grant needs a man with brains and brawn. One with the strength to intimidate her devious kin. Getting the arrogant Mr Chance to the theatre was the easy part. Persuading a cold-hearted beast to marry her might prove a little more difficult.