It was not easy to separate the threads of the tangled skein which Mr. Froude found hidden away in the dust of the past. But, lest the process of unravelling should tax the reader's patience, I have transferred to an Appendix some points of circumstantial evidence which led me, at first, to suspect, and finally to feel convinced, that 'the person' was no other than Samuel Turner, Esq., LL.D., barrister-at-law, of Turner's Glen, Newry--one of the shrewdest heads of the Northern executive of United Irishmen.[27] Pitt made a good stroke by encouraging his overtures, but, like an expert angler, ample line was given ere securing fast the precious prey. One can trace, through the public journals of the time, that the betrayer's disclosures to Downshire were followed by a decided activity on the part of the Irish Government. The more important of the marked men were suffered to continue at large, but the names having been noted Lord Camden was able, at the threatened outburst of the rebellion, to seize them at once. Meanwhile an influential London paper, the 'Courier' of November 24, 1797, gave a glimpse of the system that then prevailed by announcing the departure from Dublin for England of Dr. Atkinson, High Constable of Belfast, charged, it is said, with full powers from Government to arrest such persons as have left Ireland, and against whom there are charges of a treasonable or seditious nature. The former gentleman is well known, and will be long remembered by the inhabitants of Belfast, for the active part he took in assisting _a Northern Marquis_,[28] and the young apostate of the County Down, to arrest seven of their fellow-citizens on September 16, 1796; since which period these unfortunate men have been closely confined without being allowed to see their friends, and now remain without hope of trial or liberation. 'The young apostate of Down'--thus indicated for English readers ninety years ago--was Lord Castlereagh, afterwards Minister for Foreign Affairs, and well twitted by Byron for his Toryism; but who, in 1790, had been elected, after a struggle of two months' duration and an outlay of 60,000_l._, Whig Member for Down. Like Pitt, he began as a reformer; like Disraeli, he avowed himself a Radical; and presided at a banquet where toasts were drunk such as 'Our Sovereign Lord the People.' Ere long his policy changed, and his memory is described as having the faint sickening smell of hot blood about it. Mr. Froude's work has been several years before the world; it has passed through various editions. Thousands of readers have been interested by his picture of the muffled figure gliding at dark to breathe in Downshire's ear most startling disclosures, but no attempt to solve the mystery enshrouding it has until now been made.[29]