Buchanan's _Detection_ was peculiarly subject to this reproach. It was written for the purpose of proving the case of the lords by demolishing entirely that of the Queen--before England and the commissioners of England first, seated in session to investigate the subject, and after them before the world in general. The inquiry which was opened at York in October 1568, six months after Mary's escape to England, was the most like a trial of anything in which her history was discussed. She was represented by commissioners, while Murray and several of his colleagues were present in person, along with Buchanan and other secretaries or minor commissioners. It was at this inquiry that the Casket Letters were first produced under, we are bound to say, if we judge by the rules of a period of settled law and order like our own, very suspicious circumstances. Even the question of the language in which they were written is a very difficult one. All through, indeed, this question is difficult, though it is never formally discussed until that tragical occasion. In what language did Mary and Knox hold their discussions? Could it be always in French that this accomplished Queen wrote and spoke? When she is reported to have said, as recorded in a previous chapter, "That man gart me greet sore, and grat never tear," is this expression, so distinctively and strongly Scots, a translation from some more elegant murmur in another language? She who had so many tongues, had she left out that in which she had been born, the language of her childhood and of her country? This problem is only considered by the historians when it is required to prove that a letter must be forged because it is apparently first written in Scots. There is also a very great point made of the difference between Scots and English, which seems to have been very slight indeed, a difference of spelling more than anything else, nothing that could confuse any but the most ignorant reader. The following sentences from Buchanan's "_Admonition direct to the Trew Lordis, maintaineris of justice_" will throw some light on the latter question, the difference between the written speech of the two different kingdoms, which one writer tells us would have made it easier for Queen Elizabeth to read letters in French than Scots:-- "It may seme to zour lordshippis," says Buchanan, "yat I, melling with heich materis of governing of comoun welthis do pass myne estait, being of sa meane qualitie, or forgetting my dewtie geveing counsal to ye wysest of yis realme. Not the les seeing the miserie sa greit appeiring, and the calamitie sa neir approching, I thocht it les fault to incur the cryme of surmounting my private estait than the blame of neglecting the publict danger."