The exploits of these princes, which were greater than anything of which Egypt had to boast in the whole of its glorious past, must have helped to suggest the temple form of their tombs. To this form the general movement of the national art also pointed, and to give it effect nothing more was required than the separation of the chapel from the tomb proper, to which previous tradition had so closely allied it. The situation of the sepulchre, after Thebes had become a populous city and the real capital of Egypt, was no longer a matter of question. It was in the rocky flanks of the Libyan chain that all its inhabitants sought that asylum for their dead which the inhabitants of Memphis found upon the eastern edge of the desert. The Libyan chain to the west of Thebes offers no platform like that of the necropolis of Memphis. Its cliffs and intersecting ravines offer no sites for constructed works; hence the ordinary form of Theban tomb is the _speos_, or the _pipe_, which is but an exaggerated form of the _speos_. Like the chief men among his subjects, the sovereign loved to take his last repose in the immediate neighbourhood of the city in which he had dwelt during his life, in which the streets had so often resounded to the cries of triumph which greeted his return from some successful campaign, or had seen him pass in some of those long processions which are figured upon the walls of Medinet-Abou (Fig. 172).[239] His tomb was a cavern like that of his subjects. Fashion and the physical conditions of the country governed him as well as his inferiors in rank. From the reign of Seti I. onwards, the kings chose for their place of sepulture the wild and deserted valley in which Belzoni found the tomb of that conqueror. In the time of the Ptolemies it contained the bones of no less than forty Egyptian monarchs. It would be difficult to imagine any site better calculated for the isolation and concealment of the mummy than this valley, where the rocks split and crumble under the sun, and the sand blown hither and thither by the winds from the desert fills up every crevice in the cliffs. [239] Fig. 172 reproduces only a part of the long plate given in Wilkinson. In order to bring the more important groups within the scope of one page, we have been compelled to omit the central portion, which consists principally of columns of hieroglyphs. [Illustration: FIG. 172.--Rameses III. conducting a religious procession, at Medinet-Abou. (Wilkinson, iii., pl. 50.)] Nothing could be easier than to mask the entrance in such a place, but, on the other hand, no constructed building of any importance was possible except at a great expenditure of time and labour.[240] [240] See the description of the Valley of the Kings in the _Lettres d'Égypte et de Nubie_ of CHAMPOLLION (p. 183 of the second edition).