"What is this, Michael?" he called, as his eyes fell upon another well sealed packet. Michael, however, knew not from whence it came or how it got there. "Michael," said Frederick, "thou knowest that I desire no one to be permitted to enter this room during mine absence. How is it, therefore, that this letter found its way here without thy knowledge?" "Sure, yer honour, it must have bin thare afore ye lift, sor; fer Oi was out o' the room but fer a few minutes, and thin Oi made fast the door behind me, and took the kay along with me, sor. Divil a soul could inter, sor, barrin' that they came through the kay-houle." "Strange," said Harleston, as he commenced to read the lengthy letter. But stranger still he thought it ere he had finished its contents. It was writ in a labored hand, as though to avoid recognition, and read as follows:-- "To SIR FREDERICK HARLESTON, _Greeting_. "The writer of these words, though--for reasons that he is not at liberty to state--he signs not his name, is well known to thee, and to thine unfortunate friend, Sir Walter Bradley; both of which he loveth well. "To-morrow Sir Walter is to go through a form of trial--the result of which must be his conviction--and he shall immediately be taken unto Tower Hill, where his head shall be stricken from the trunk. Unless, ere to-morrow's dawn, he, by the aid of his friends, doth contrive to escape from the Tower, and make his way from London to a place of safety, he must surely die. "Sir Walter is now confined within the square tower next after passing through the Tower of St. Thomas, which, thou no doubt knowest, is that one into which the "Traitor's Gate" doth lead. "If thou wilt but turn to the enclosure in this letter thine eyes shall behold an order, signed by his Majesty, King Richard, that shall obtain for the bearer admittance to and exit from any part of the Tower. However, this cannot give unto thee power to take forth a prisoner with thee. That must be done at thine own risk, and in the manner following:--