"Then give me your attention," begged the scientist.
Carefully, as though about to exhibit some, precious jewel, he loosened the oiled-silk wrappings and showed a large map, on thin but tough paper.
"This is drawn from the old charts," the professor explained. "I worked on it many months, and it is the only copy in the world. If it were to be destroyed I should have to go all the way back to New York to make another copy. I have the original there in a safe deposit vault."
"Wouldn"t it have been wise to make two copies?" asked Tom.
"It would have only increased the risk. With one copy, and that constantly in my possession, I can be sure of my ground. Otherwise not. That is why I am so careful of this. Now I will show you why I believe we are about over the ancient city of Kurzon."
"Over it!" cried Mr. Damon. "Bless my gunpowder! What do you mean?"
and he looked down at the earthen floor of the tent as though expecting it to open and swallow him.
"I mean that the city, like many others of Central and South America, is buried below the refuse of centuries," went on the professor. "Very soon, if we are fortunate, we shall be looking on the civilization of hundreds of years ago--how long no one knows.
"Considerable excavation has been done in Central America," went on Professor b.u.mper, "and certain ruins have been brought to light. Near us are those of Copan, while toward the frontier are those of Quirigua, which are even better preserved than the former. We may visit them if we have time. But I have reason to believe that in this section of Copan is a large city, the existence of which has not been made certain of by any one save myself--and, perhaps, Professor Beecher.
"Certainly no part of it has seen the light of day for many centuries.
It shall be our pleasure to uncover it, if possible, and secure the idol of gold."
"How long ago do you think the city was buried?" asked Tom.
"It would be hard to say. From the carvings and hieroglyphics I have studied it would seem that the Mayan civilization lasted about five hundred years, and that it began perhaps in the year A. D. five hundred."
"That would mean," said Mr. Damon, "that the ancient cities were in ruins, buried, perhaps, long before Columbus discovered the new world."
"Yes," a.s.sented the professor. "Probably Kurzon, which we now seek, was buried deep for nearly five hundred years before Columbus landed at San Salvadore. The specimens of writing and architecture heretofore disclosed indicate that. But, as a matter of fact, it is very hard to decipher the Mayan pictographs. So far, little but the ability to read their calendars and numerical system is possessed by us, though we are gradually making headway.
"Now this is the map of the district, and by the markings you can see where I hope to find what I seek. We shall begin digging here," and he made a small mark with a pencil on the map.
"Of course," the professor explained, "I may be wrong, and it will take some time to discover the error if we make one. When a city is buried thirty or forty feet deep beneath earth and great trees have grown over it, it is not easy to dig down to it."
"How do you ever expect to find it?" asked Ned.
"Well, we will sink shafts here and there. If we find carved stones, the remains of ancient pottery and weapons, parts of buildings or building stones, we shall know we are on the right track," was the answer. "And now that I have shown you the map, and explained how valuable it is, I will put it away again. We shall begin our excavations in the morning."
"At what point?" asked Tom.
"At a point I shall indicate after a further consultation of the map.
I must see the configuration of the country by daylight to decide. And now let"s get some rest. We have had a hard day."
The two tents housing the four white members of the b.u.mper party were close together, and it was decided that the night would be divided into four watches, to guard against possible treachery on the part of the Beecher crowd.
"It seems an unkind precaution to take against a fellow scientist,"
said Professor b.u.mper, "but I can not afford to take chances after what has occurred."
The others agreed with him, and though standing guard was not pleasant it was done. However the night pa.s.sed without incident, and then came morning and the excitement of getting breakfast, over which the Indians made merry. They did not like the cold and darkness, and always welcomed the sun, no matter how hot.
"And now," cried Tom, when the meal was over, "let us begin the work that has brought us here."
"Yes," agreed Professor b.u.mper, "I will consult the map, and start the diggers where I think the city lies, far below the surface. Now, gentlemen, if you will give me your attention----"
He was seeking through his outer coat pockets, after an ineffectual search in the inner one. A strange look came over his face.
"What"s the matter?" asked Tom.
"The map--the map!" gasped the professor. "The map I was showing you last night! The map that tells where we are to dig for the idol of gold! It"s gone!"
"The map gone?" gasped Mr. Damon.
"I--I"m afraid so," faltered the professor. "I put it away carefully, but now----"
He ceased speaking to make a further search in all his pockets.
"Maybe you left it in another coat," suggested Ned.
"Or maybe some of the Beecher crowd took it!" snapped Tom.
CHAPTER XVIII
"EL TIGRE!"
The four men gazed at one another. Consternation showed on the face of Professor b.u.mper, and was reflected, more or less, on the countenances of his companions.
"Are you sure the map is gone?" asked Tom. "I know how easy it is to mislay anything in a camp of this sort. I couldn"t at first find my safety razor this morning, and when I did locate it the hoe was in one of my shoes. I"m sure a rat or some jungle animal must have dragged it there. Now maybe they took your map, Professor. That oiled silk in which it was wrapped might have appealed to the taste of a rat or a snake."
"It is no joking matter," said Professor b.u.mper. "But I know you appreciate the seriousness of it as much as I do, Tom. But I had the map in the pocket of this coat, and now it is gone!"
"When did you put it there?" asked Ned.
"This morning, just before I came to breakfast."
"Oh, then you have had it since last night!" Tom e.j.a.c.u.l.a.t.ed.
"Yes, I slept with it under my clothes that I rolled up for a pillow, and when it was my turn to stand guard I took it with me. Then I put it back again and went to sleep. When I awoke and dressed I put the packet in my pocket and ate breakfast. Now when I look for it--why, it"s gone!"
"The map or the oiled-silk package?" asked Mr. Damon, who, once having been a businessman, was sometimes a stickler for small points.
"Both," answered the professor. "I opened the silk to tie it more smoothly, so it would not be such a lump in my pocket, and I made sure the map was inside."
"Then the whole thing has been taken--or you have lost it," suggested Ned.
"I am not in the habit of losing valuable maps," retorted the scientist. "And the pocket of my coat I had made deep, for the purpose of carrying the long map. It could not drop out."
"Well, we mustn"t overlook any possible chances," suggested Tom. "Come on now, we"ll search every inch of the ground over which you traveled this morning, Professor."