“Not so,” answered Catherine; “your grandfather was assassinated, and the man who killed him is not known to this day. Your great-grandfather basely murdered the Black Douglas in Stirling, thus breaking his word of honour for he had given Douglas safe conduct, yet he profited by his act and crushed my kinsmen.”

“I see, Lady Catherine, that you are too well versed in history for me to contend with you successfully on that subject,” said the king with a silent laugh. “We will therefore restrict the inquiry to the present case, as wise people should. Tell me then, so that I may be the better able to advise you, what is your true object—revenge and my death, or the wringing from me of concessions for your family?”

“I could not wring concessions from you, because you could not make good those concessions unless I released you. I dare not release you, because I dare not trust you.”

“I foresaw your difficulty, and so I told your sister that, having gone so far, you could not retreat. The issue is therefore narrowed down to death, and how it may best be accomplished. You have made the tactical mistake of forewarning me. I cannot understand why you did not mount my horse beside me and stab me in the back as we rode through the forest. Did this not occur to you, Lady Catherine?”

“It did, but there were objections. Your horse would doubtless have escaped me, and would have galloped riderless to Stirling; your body would have been found by break of day, and we but a few hours’ march from Stirling. Here I expect you to lie undiscovered in this locked room till we are safe in England.”

“That is clear reasoning,” commented the king with impartiality, “but have you looked beyond? Who will be the successor of the throne? I have neither brother nor sister; my two uncles died before I was born, and I perish childless. I think you mentioned that you wished to extinguish our line. Very well; what follows? Who is heir to the throne?”

“It matters nothing to me,” said Catherine firmly. “Whoever rules Scotland could not be a greater enemy to my race than you are.”

“I am not so sure of that. I think your dagger-blow will bring consequences you do not look for, and that your kin, now exiled in England will find the stroke a savage one for them. You forget that the stern King of England is my uncle, and on this relationship may lay claim to the Scottish throne. Be that as it may, it will be no secret that a Douglas committed the murder; and think you Henry VIII will offer safe refuge to his nephew’s assassins? You much misjudge him if you do. It would have been far better to have slain me in the forest. This castle business is but an ill-judged, ill thought-out plan. I am sorry to appear adversely critical, but such is my opinion, and it confirms me in the belief that women should leave steel and State alone.”