After traversing about twenty yards the two officers came to a broader passage running at right angles to the former. The turning to the right, Dick knew, led to the courtyard. It was dimly lighted. Nearly a score of Turkish soldiers were squatting Oriental fashion on the stones, some smoking, most of them engaged in mending clothes, and all were talking rapidly. Through the crush Crosthwaite and Farnworth made their way, the Turks backing against the wall in obvious fear of their supposed taskmasters. At the entrance stood a soldier on guard. Upon hearing the officers approach, he drew himself up and saluted. Not for one moment did he show any signs of suspicion, a circumstance that gave Dick additional confidence. His one dread was that they might meet with some of the German officers, and be held up by some trivial question in an attempt at conversation. Fortunately the square was practically deserted. Half a dozen artillerymen bent double under loads of blankets and accoutrements were proceeding in single file from one store to another, while on the flat roof of one side of the barrack buildings stood a sentry in charge of the pair of anti-aircraft guns, Away to the right a search-light was slowly playing upon the waters of the Dardanelles, while the sky was illuminated by the reflected glare of dozens of other search-lights upon the sides of The Narrows. Dick led the way to a large stone arch, which, he knew, communicated with the open country, for through it the battery of field-artillery had departed and returned. The wall on either side was protected by a thick wall of sand-bags, evidently placed there as the result of bitter experience, when the British and French 12-inch shells came falling obliquely from the sky. The archway was nearly twenty paces in length. About midway, and on opposite sides, were small doors. They were open, and disclosed long galleries lighted by lanterns of a similar type to those used in magazines on board ship in pre-electricity days. Along the side passage ran a pair of narrow-gauge rails, while just within one of the doors stood a couple of trucks, each carrying a large locomotive torpedo fitted with a war-head. Dick came to an abrupt halt. Even in the midst of his bid for freedom his professional instinct would not let the opportunity pass. These sinister weapons, he knew, could not be for use on board a ship, since there was no accommodation for vessels alongside the water-front of Fort Medjidieh. Besides, warships taking torpedoes on board would most certainly do so in places remote from the range of British guns--most probably at Constantinople or Skutari.