The Assassins" Castle of Lammsar and out the contours of the truncated cone of hill and enclose a sloping surface about 1,500 feet long by 600 feet wide, where the remains of buildings are scattered. There is not much masonry on the long western side; the natural precipice must always have been a sufficient defence in itself, and a series of small towers stood here on every out- jutting point, a bowshot one from the other. On the south and east the ramparts still exist, built of rough stones taken from the hillside apparently at different dates, for some parts are made of much smaller stones than others. They go in and out, following the natural line of the hill with the effect of a Vauban fortification long before its time, and the attacking forces must have had their flank exposed almost at every point. On the north alone the approach is possible, for here is the neck which joins the castle to the mountain-side behind it, and here the water conduit once came down from the upper village of Viar, visible through a narrow defile of the Naina Rud. This must have been the most delicate part of the defence, though I could see no trace of any ditch or outer fortification to protect the northern gate; but the gate itself and all this part is very much obliterated, and some strong defence there must have been, since, once this height were captured, the whole of the castle enclosure sloping away from it downhill would lie at the attackers' mercy. The southern gate, which is 500 feet lower than the other, is much better preserved. Its outer entrance faces west, then turns, with the ruins of a guardhouse on its left, north-west into the enclosure. There is a difference of about twenty feet in the level of the inner and outer gates, and their actual doorways are built of big squared stones. In the enclosure itself are the ruins of a good many buildings, some quite modern and probably left by shepherds in later times. It does not look as if the castle had ever been used again after its cap- [246]