But Parliament did not meet until the 5th November, and by that time the secret had leaked out. There have been great differences of opinion regarding the manner in which the plot was revealed. It appears, however, that a mysterious letter was sent by Mr. Francis Tresham, one of the conspirators, to his brother-in-law Lord Monteagle, warning him regarding the coming disaster. This letter is said to have led to a search in the cellars under Parliament House, but it is quite probable that the plot was revealed in a more direct manner. In any case, the gunpowder was discovered in the cellar, and beside it was Guy Fawkes. He was arrested on the early morning of the 5th November by a Westminster magistrate and a party of soldiers. When the other conspirators heard that the plot had failed they fled into the country, but the most of them were captured, tried for high treason along with Guy Fawkes, and with him were hanged as traitors in St. Paul's Churchyard. For many years after this plot was discovered the 5th day of November was kept as a national holiday, and the people expressed their patriotism and their Protestantism in huge bonfires, with shoutings and the ringing of bells. Also, it was regarded as the proper thing on this day to parade a scarecrow effigy of Guy Fawkes, which was finally burned as a warning to traitors. Now the day is only remembered by boys who are bent upon a frolic, for this old rhyme has lost much of its significance: Remember, remember! The fifth of November, The Gunpowder treason and plot; There is no reason Why the Gunpowder treason Should ever be forgot! LORD MAYOR'S DAY. In London the 9th of November has been regarded, for many centuries, as a day of special importance. It is Lord Mayor's Day. That is to say, the new Lord Mayor of the City of London, who was elected by the freemen of the City Guilds on Michaelmas Day, goes in his state coach to the Law Courts to be "sworn into" office by His Majesty's judges. Until recent times the Law Courts were situated at Westminster, and in old Westminster Hall some of the greatest trials in English history took place,--such as the trials of Lord Cobham, Strafford, and Warren Hastings. Now the Law Courts are situated in the Strand, near to the spot where stood Temple Bar.