James Drummond and his brethren having similar opinions with the author's old acquaintance, and debating how they might raise the fallen fortunes of their clan, formed a resolution to settle their brother's fortune by striking up an advantageous marriage betwixt Robin Oig and one Jean Key, or Wright, a young woman scarce twenty years old, and who had been left about two months a widow by the death of her husband. Her property was estimated at only from 16,000 to 18,000 merks, but it seems to have been sufficient temptation to these men to join in the commission of a great crime.

This poor young victim lived with her mother in her own house at Edinbilly, in the parish of Balfron and shire of Stirling. At this place, in the night of 3d December 1750, the sons of Rob Roy, and particularly James Mhor and Robin Oig, rushed into the house where the object of their attack was resident, presented guns, swords, and pistols to the males of the family, and terrified the women by threatening to break open the doors if Jean Key was not surrendered, as, said James Roy, "his brother was a young fellow determined to make his fortune." Having, at length, dragged the object of their lawless purpose from her place of concealment, they tore her from her mother's arms, mounted her on a horse before one of the gang, and carried her off in spite, of her screams and cries, which were long heard after the terrified spectators of the outrage could no longer see the party retreat through the darkness. In her attempts to escape, the poor young woman threw herself from the horse on which they had placed her, and in so doing wrenched her side. They then laid her double over the pummel of the saddle, and transported her through the mosses and moors till the pain of the injury she had suffered in her side, augmented by the uneasiness of her posture, made her consent to sit upright. In the execution of this crime they stopped at more houses than one, but none of the inhabitants dared interrupt their proceedings. Amongst others who saw them was that classical and accomplished scholar the late Professor William Richardson of Glasgow, who used to describe as a terrible dream their violent and noisy entrance into the house where he was then residing. The Highlanders filled the little kitchen, brandishing their arms, demanding what they pleased, and receiving whatever they demanded. James Mhor, he said, was a tall, stern, and soldier-like man. Robin Oig looked more gentle; dark, but yet ruddy in complexion--a good-looking young savage. Their victim was so dishevelled in her dress, and forlorn in her appearance and demeanour, that he could hardly tell whether she was alive or dead.

The gang carried the unfortunate woman to Rowardennan, where they had a priest unscrupulous enough to read the marriage service, while James Mhor forcibly held the bride up before him; and the priest declared the couple man and wife, even while she protested against the infamy of his conduct. Under the same threats of violence, which had been all along used to enforce their scheme, the poor victim was compelled to reside with the pretended husband who was thus forced upon her. They even dared to carry her to the public church of Balquhidder, where the officiating clergyman (the same who had been Rob Roy's pensioner) only asked them if they were married persons. Robert MacGregor answered in the affirmative; the terrified female was silent.