Though Vasco had explored nearly every nook and corner of the city in which he had lived, he had never visited what was called Old Panama.

You must understand that the Panama of to-day is not on the site of the original city. The present city was built after the former one had been destroyed by the buccaneers. Of them you may learn something further on.

The so-called "modern" Panama was founded in 1673. As protection from pirates and buccaneers a high stone wall was built around the city, which cost over eleven million dollars. That seems to us an enormous sum, and to the people of those days it was fabulous. It gives some idea of the vast wealth that must have been stored in the city to admit of such an outlay for its protection. Few traces of this wall now remain. As civilization has advanced, and life and property have become safer, it has gradually been torn down.

One day, not long after the great military review, Vasco was down at the water-front watching the fishermen unloading their boats. As it happened, he fell in with Enrique Mendoza, in whose father's boat he had witnessed the capture of the shark.

Enrique, as well as Vasco, was always looking for some new adventure. At this time he hailed his friend with a glad shout, and asked:

"What do you say, Vasco, to a trip over to Old Panama to-morrow? Father will let us take a small boat he is not using, and we can go part of the way in that."

Vasco was much pleased at the invitation, but was in doubt as to whether it were perfectly safe for them to go without some one for protector and guide, as he had heard many disquieting stories about the old city.

"Have you ever been over there?" he asked Enrique.

"Many times."

"Do you know the way about?"

"Of course I do. I have often been there with father. Besides, there's an old friend of his who lives in a hut near the ruins, and he will be glad to show us about."

When Vasco heard the last statement, he hesitated no longer. "I'll go, then," he said. "I have never been there, and I should like to see what the place looks like. What do you say to asking my American friend Harlan to go with us?"

"That will be fine. The boat will carry three all right, and we will have all the jollier time."

Enrique had never seen Harlan Webster, but he had heard Vasco talk about him, and was greatly pleased at the thought of having him along on this trip. He had seen and heard enough of the Americans about the city to know that they were very active and enthusiastic. So he felt certain that this American boy would add to the fun of the excursion.

"All right, then," said Vasco. "We'll start early to-morrow morning. What time do you say?"

"Six o'clock won't be too early. It will take at least three hours to get over there. That will give us a little time to look around before the middle of the day, when it will be too hot to move about. Then in the afternoon we can search among the old ruins awhile, starting for home in season to get here before dark."

This plan suited Vasco, and he took leave of Enrique, saying that he would see Harlan sometime during the day. He had little doubt that the young American would go with them.

As the day was now well advanced, though, Vasco first made his way home, when for several hours he remained within doors. He told his mother of his plans for the next day, to which she made no objection. She rarely interfered with his movements, except that sometimes she asked him to do some chores about the house, and occasionally required him to look after Inez and his baby brother while she was away on an errand.

In the latter part of the afternoon Vasco went to see if Harlan could go with him the next day. It didn't take long to give the invitation, and it took Harlan even less time to accept it, so far as he was concerned.

"Wait a moment, though," he said to Vasco. "I must ask my mother if she is willing for me to go with you."

To Vasco this seemed unnecessary. He never thought of having to ask his mother about such things. But he had known Harlan long enough to learn that American ways, especially so far as boys were concerned, were different from Panama customs.

The American boy immediately went to his mother and told her what he wanted. At first she was inclined to object to his making this trip with only two other boys for companions, but his arguments and persuasions finally overcame her scruples, if not her fears, and he secured her consent.

Back to Vasco he hurried and told him the welcome news.

"Remember, now," said Vasco as he took his leave, "and be at the beach near the Panama Railroad pier at six o'clock sharp."

"I surely will. Good night," was Harlan's reply.

Both boys retired in good season that evening, to get well rested for their early start.

At dawn next day Vasco sprang out of bed. He was not concerned about the weather, for this was the dry season of the year, when for months no water falls, and there was no danger of rain preventing the day's outing.

Quickly he ate the breakfast his mother provided, and many minutes before the appointed time was on his way to the meeting-place. Though the first on the scene, he did not have to wait long for the other two boys. Enrique was the second to arrive, and shortly afterward Harlan made his appearance.

Harlan was glad to meet Enrique, and felt sure that if his mother could have seen the sturdy brown fisher-lad getting the boat ready she would have had no concern for their safety. All three boys were familiar with boats, though of course Harlan's acquaintance was with less rudely built craft than the one in which they were to cross the bay.

Each boy had brought along fruit for lunch. In addition, Vasco had some hard-boiled eggs, wrapped in corn-husks, as sold in the market. Eggs are not bought by the dozen in Panama, but by the pair. The boys expected either to catch fish or to get some from Juan, Enrique's friend who lived in the hut near the old city.

Soon they got under way in the little boat, with its sail spread wide to catch the light morning breeze. Enrique was at the rudder and Vasco acted as lookout at the bow, while Harlan made himself as comfortable as possible midway. All of them hugely enjoyed the sail across the bay.

Old Panama is only about four miles northeast of the present city in a straight line, but as the boys went, partly by water and partly on foot, they had to cover a much longer distance. That did not trouble them, however, especially while in the boat.

After sailing about an hour, a landing was made at Point Paitillo, which forms the protection for the upper side of the Bay of Panama. The boat was safely drawn up to shore and made fast to a huge boulder by a long line.

As the tide was high when they landed, they knew there was no danger of the boat's going adrift later in the day. In fact, as the tide receded it left the craft high and dry upon the shore. At Panama the tide has a rise and fall of about twenty feet.

The boat secured in its position, the boys took up their way afoot. They passed along the rocky shore, through some swampy lowland and over broad green fields, crossing many little brooks and rivulets.

To Harlan especially this walk was delightful. He greatly admired the park-like trees and shrubs, the luxuriant tropical vegetation, the beautiful scenery, fleeting glimpses of city and sea, and over all the clear blue southern sky.

After awhile the boys came to Algarrobo River, which empties into the sea close beside the ruins. The stream was spanned by an old stone bridge, built over 350 years ago. Across this they made their way and came in sight of the old city—or what was visible in the bewildering mass of tropical vegetation.

They did not immediately go into its depths, however, but, led by Enrique, sought out the hut of Juan, who lived a hermit life on the border of this city, where years ago there had been a great tide of humanity, and where ambition, avarice, gaiety, luxury, once had full sway, but now was only a memory. Where once thousands of people had thronged, now the only living things were serpents, alligators, iguanas, pumas, and such.

The boys were fortunate in finding Juan at home, and as it was now well toward the middle of the day, they were glad to get into the shelter of his little thatch-roofed hut, and rest their weary limbs after the long walk.