Again, the wall of Ophel, which commences at the south-east angle, and thus favours the view we are considering, runs sixty feet south, then 700 feet south-west, and terminates abruptly at a point nearly due south of Huldah Gate (see lithographic plan, No. 30), to which, it would seem possible, its return course may have run. Even Fergusson's argument for the south-west angle--that the south wall of the platform which now surrounds the Mosque of Omar runs parallel to the south wall of the Haram, at a distance of exactly 600 feet, and for a length of 600 feet--is nearly as much in favour of the south-east angle; and Lewin's argument that Josephus's πύλας κατὰ μέσον must refer to a double doorway, and therefore to the present Huldah Gate, is balanced by Warren's discovery that originally the so-called Triple Gate was a double tunnel. It is often urged that the sub-structures known as Solomon's stables, in the south-east corner of the Haram, are of too slight a construction to bear the cloisters of the temple, and too modern, as well as too slight;[34] but the floor of these vaults is on a level with the six feet course of stones previously mentioned--above which level few stones remain _in situ_--and any previous sub-structures would not have survived the destruction of the east and south retaining walls. Between the Triple Gate and the south-east angle is the postern known as the Single Gate, with its sill on a level with the sill of the Triple Gate, but itself of modern construction. Below this gate, and below the vaults within the Haram, at this corner, Warren discovered a passage for carrying into the Kedron some liquid, and yet wholly distinct from the water channels under the Triple Gate. Underground Jerusalem so abounds in aqueducts and passages that it would not be of much force to urge that this channel conveyed the blood from the altar: yet the suggestion may be set against any similar one in favour of another site. Finally, on this point, at the south-east angle, which some had thought to be modern, the foundations are about eighty feet beneath the surface, the stones are _in situ_, and some of them have Phoenician masons' marks painted and chiselled on them. That the stones are _in situ_ is proved by the circumstance that a small depth of _débris_, which had been shovelled away to make room for the lowest tier, still remains close by, and has its layers _sloping inwards_. That the wall is ancient is thought to be evidenced by the Phoenician characters, which seem certainly to point to pre-Roman times, and possibly to the time when Solomon engaged the workmen of Hiram, King of Tyre, to build the temple.