Miss Burn was a suspicious young woman and had every right to be. Her story had made me ashamed of my sex, and she wished to break an engagement in the safest way possible. Though we understood our sensitive task, she wanted to make quite sure we did not abandon her.

"Are you sure you will return after speaking to my fiancé, considering it will be his word against mine?" she asked Holmes, who wore an expression that I knew to be of extreme pity, but was hidden to those who did not know quite so well, like his face were behind a sheet.

"It is not only you who has spoken, but the clues. I couldn't doubt your story if your fiancé was the Pope. We shall come back, I give you my word," she had gripped his arm and he flexed his fingers uncomfortably. She stared at Holmes, who met her gaze full on. "Watson, give her your word, too."

"Miss Burn, we shall return. I give you my word of honour."

"See, Miss Burn, my honour hasn't been broken but truthfully my word has, whereas Dr Watson's honour was born in the army and his word can't be. Between us, our oath is positively Arthurian."

"I hope you two knights will prove that chivalry is not mythical." She smiled and released Holmes, and soon we were on our way to fight for her cause.