It was more than strange; it was almost beyond belief. For when the matter came to be thoroughly investigated the Professor declared that they had stumbled upon the path by which Edward Harbor had gained entrance to the interior parts of the ruins.
'The whole thing is perfectly clear,' he said. 'He excavated a few yards to our right, and gained a spot at the back of the chamber in which we took refuge. Some of his diggers also worked on our side, but ceased, perhaps because the prospect was more promising elsewhere. To-morrow we will pursue the search more thoroughly.'
Let the reader imagine what a condition of excitement David was thrown into when it became established without shadow of doubt that he was actually treading in the steps his father had followed. For three days after the attack made by the band of Chinese he worked with the excavators, removing debris from parts which had evidently been cleared not so long ago, but to which the wind had again swept masses of sand. It was remarked, also, that on this side no objects of art or of any value were come upon.
'Been removed by those before us, proving we are in their works,' said the Professor. 'This is indeed most interesting. It must have been here that your father made that will, David, and here also, alas, that he lost his life. Chang fell upon him in the ruins, I am told, and even secreted his gains in these parts. Be patient, lad. Something may yet come of this quest of yours, though one can hardly hope that it is possible.'
On the morning of the fourth day the excavators came to a wall which had been broken through, and on passing to the far side discovered another covered way, as dark as pitch, but altogether free of sand and debris. David led them eagerly till they came to a part where the ruins had fallen in entirely, and where sand blocked their path. But three hours' work cleared it, and allowed them to proceed, there being still evidence of the fact that others had been before them. It was with a sudden fluttering of the heart that he realised that they were passing somewhere near to that tower which had so often attracted his notice. And then he gave vent to a shout of amazement; for undoubtedly excavators had been before them. The covered way led beneath the walls surrounding the tower into a wide, open space, from which the height of the surrounding walls had kept more than a little sand blowing. There was a wide doorway at the foot of the tower, the posts of which were tottering, while, now that he was so close, he observed that the original crown of the tower had gone, and one wall, the far one, crumbled away entirely. But the fallen stones helped to form a chamber, and that was piled with objects of every description.
'Here, undoubtedly, were stored all the bronzes which your father unearthed,' said the Professor, surveying the scene and inspecting the objects. 'This is a find, though it makes one feel sad, remembering what misfortune befell him. Ah! As I live, that is baggage.'
There was not a doubt about it. The sandy surroundings had preserved things wonderfully, and in one corner, covered with dust, was undoubtedly a pile of baggage, while there were cases galore, a box of cash for the payment of the workers, arms, and a hundred other things.
'Here you see the items for which that scoundrel Chang committed the foul murder,' declared the Professor. 'David, Dick, we will see into that baggage.'
More than one of the trio trembled as the locks were broken. For the first time for many a day David wore a pasty complexion. There was a subdued air of excitement about the lad which his comrades felt rather than saw. Then there came a sharp exclamation from the Professor as the last of the cases was opened, the others having been found to contain clothing only. There was a tin despatch-box nestling in one corner. He dragged it out and presented it to our hero.
'It belonged to your father; it is yours,' he said kindly. 'Open, lad. We will leave you if you wish it.'