... writes," said the lad, again referring to the letter, "thatsomewhere near the beginning of the tunnel that leads into the city of gold, there is an immense flat plain, on which the ancient ... then I don't knowwhat I'd do."They were in the library of the Swift home that evening. Tom, Ned,Mr. Damon and the aged inventor, and of course the only thing talked of was the ... then, as there was no further danger of being overheard, they resumed their talk about the city of gold. It wasdecided that they would have to wait the arrival of another letter fromMr. Illingway...