another Roman Catholic prisoner, John Arden, was kept in confinement. Gerard, when sufficiently recovered to be able to walk about again, obtained leave of his jailor to visit Arden. Together they planned escape. They wrote to friends in the City with orange juice, which writing was invisible unless subjected to a certain treatment whereby it became legible. Gerard, by the help of these friends, secured a long piece of thick string with a leaden weight attached, and with this came a written promise that upon a certain night a boat would lie beside the Wharf just under the Cradle Tower. On the evening of the day appointed Gerard stayed longer than usual with Arden, but dreading lest at any moment he should be sent for and taken back to the Salt Tower. But night came and he was still in the Cradle Tower, looking out anxiously across the moat towards the riverside. At last the boat approached, and was moored opposite the tower, from which Arden threw his line, and both prisoners saw, with joy, that the leaden weight had cleared the moat and fallen on the Wharf. It was picked up by the boatmen, and a strong rope was fastened to the cord. This rope Arden hauled up into his cell and made it fast. Gerard then swarmed down the tightened rope to the Wharf, suffering acute pain owing to the condition of his arms and wrists. It was five months after his torture before the sense of touch was restored to his hands. Arden followed, and both got away safely to the steps beside London Bridge, where they were met by the friends who had cheered them in their captivity, and were taken to a place of safety. The Cradle Tower is seen best from the Wharf. This broad riverside embankment constructed by Henry III. makes a delightful promenade. It is reached from the level of the Tower Bridge approach by descending a flight of steps on the eastern side of the roadway and passing under the bridge by the archway at the guard-room. When this arch is passed under, on the immediate right, beyond the trees, is seen the Galleyman or Develin [Illustration: THE TOWER FROM THE TOWER BRIDGE, LOOKING WEST]