On seeing the rush through the archway the look-out parties from the south wing would overpower the sentry in the square. The arms belonging to the three sentries and one other rifle were to be immediately taken to the corners of the barracks and the outside sentries covered. The orderlies, under an officer, would meanwhile form up in the square as a reserve. Surprise was to be our greatest ally, and we hoped that, within a minute of the bell stopping, the barracks would be in our hands. Having herded our Turkish guard into a big cellar and locked them in, we would then signal to the aeroplanes that the barracks were in our possession by laying out sheets in the square; while small picquets, armed with Turkish rifles and ammunition, would see to it that the aeroplanes on landing would be unmolested from the village. We are still convinced that the plan would have succeeded. Even those in the know, however, put little faith in the probability of the aeroplane scheme being carried out, realising that the machines necessary for such an enterprise were not likely to be available from the main battle-fronts. Preparations, therefore, continued for working out our own salvation, as though this plan for outside help had not entered our heads. With the first signs of spring the tunnel scheme began to take concrete form. As already mentioned in the description of the barracks, the ground to the west rose gently up to the Angora road. In this slope was a shallow, cup-like depression at a distance of forty yards from the building. If only a convenient point for starting a tunnel could be found in the nearest wall, the cup would form an ideal spot for breaking through to the surface. A night reconnaissance was made in the downstairs room on the western side of the barracks. As a result of this there seemed a likelihood that under the whole of the platform in this room we should find a hollow space varying from one to three feet in depth. If the surmise were correct and a tunnel could be run out from here, there would be no difficulty in getting rid of all the excavated earth into this hollow space. Unfortunately the lower room, though not in use, was kept locked.