of the immense doorways and so into the great middle part of the temple where the big stone altar was located.
"Now we're prepared for emergencies," remarked Tom, as he looked up at the yawning hole in the dome-like roof. "If worst comes to worst, and we have to run, we can float right up here, out of the temple, and skip."
"Do you think anything is going to happen?" asked Mr. Damon anxiously.
"You never can tell," replied Tom. "Now to make some lamps. I think I'll use gas, as I've got plenty of the chemicals."
It took two days to construct them, and Tom ingeniously made them out of some empty tins that had contained meat and other foods. The tins were converted into tanks, and from each one rose a short piece of pipe that ended in a gas tip. On board the dirigible were plenty of tools and materials. Into the cans were put certain chemicals that generated a gas which, when lighted, gave a brilliant glow, almost like calcium carbide.
"Now, I guess we can see to make our way about," remarked Tom, on the morning of the third day, whey they prepared to go back to the city of gold. "And we'll take plenty of lunch along, for we may stay until nearly night."
