"I want to describe the personal habits of animals in their surroundings. I said 'personal' habits. Do you take me?"

"No, sir."

"You think I should use another word, and say, perhaps, 'distinctive' habits. I say personal. Now, you take a lion--a bush lion or a veld lion, a yellow lion or a black lion, young or old.

That lion, whichever one you take, is a lion by himself. He's got his own character and his own experience. All lions have ways in common because they're built alike. They're heavy and muscular because they've got to pull down big game; and because they're heavy they move slowly, and because they move slowly they've got to adopt common tactics in hunting. Good; but one lion differs from another, and so with other animals, right away through the list. So, I say, one must study the personal habits of animals in their own back yard, so to say, before he can give a true description of them. Do you take my meaning?"

"I should like nothing better than to study animals in their home,"

said the boy, burning with excitement.

"And the two of you think you would like to join me in my expedition?"

Mr. Hume looked at them out of calm yellowish eyes as if he were studying them.

"We should," they said eagerly.

"Think it will turn out a picnic--a glorified sort of camping-out, with black fellows to wait on you, and a lot of shooting and fishing? Is that your idea?"

"We were talking about that this morning," said Compton, "and we came to the conclusion that exploring was hard work. We are prepared for rough living."

"That's right. And you tell me that you are free to go without giving anxiety to relatives, eh?"

"We neither of us have near relatives."

Mr. Hume stood up and felt each one over in turn, making them draw deep breaths.

"Seem sound," he mused, "in wind and limb. But there is one thing.

The great danger in Central Africa is from fever--not from animals or blacks." Here he took down a bottle of white powder, and placed a large pinch in a wine-gla.s.s of water. "Quinine is the traveler's stand-by, but there are some who cannot take quinine, It has no effect on them, and such people have no business to set foot in fever districts. Drink this?"

Compton emptied the gla.s.s with a wry face, and Venning, when his turn came, shuddered; but they got the dose down, and smiled.

"Now," said Mr. Hume, "you both of you give me references to the headmaster of your school, and I will give you one in return. I will make inquiries about you, and I would advise you to make inquiries about me. You can come back here to-morrow afternoon, and if we are mutually satisfied, we will then fix up a contract."

"I don't think we require a reference," said Venning.

"Why not?" said Mr. Hume, sharply.

"Because," blurted out Venning, turning red--"because you have lived among animals."

Mr. Hume laughed heartily with a deep rumbling laugh.

"Animals are tricky, boy; and yet," he added, "there may be a meaning in what you say. They have a dignity in death that is grand.

Go and make your inquiries, lads. I am Dave Hume, the hunter, and my life has been pa.s.sed in wild lands, but there are some in London who know me."

He rose up to open the door, and Venning overtopped him by inches, yet he did not look either small or unwieldy. His step was springy, and his head, poised on a ma.s.sive neck, was well set, with the chin raised. He was a man, evidently, who had always looked the world straight in the face. His eyes had a yellowish tinge, and in their colour and their calm they reminded Venning somehow of a lion, an impression heightened by the tawny hue of a long beard.

The next day, the references having been satisfactorily followed up, the contract was entered upon, and the two boys paid over the sum of Pounds 50 each to David Hume, who in his turn agreed to let them share in any profits which the expedition might make, from any source whatever.

"Profits, Mr. Hume?" they asked.

"Profits from hunting, from trading, or from discovery. I don't say that we shall make anything. The chances are, of course, that we may lose all before we are a month out, but it is always well to be business-like. There is gold in Central Africa. We may discover a gold reef. There are new animals in the forest. We may catch an okapi, and if we could land it in England it would fetch a large sum. We might snare a live gorilla, and there is not a gorilla in the zoological gardens of Europe."

"A gorilla!" said Venning, thinking of a picture he had seen of an erect man-ape bending a rifle-barrel into an arch as if it were a cane.

"A gorilla!" said Compton. "I should like to find the Garden of Rest."

"You have heard his story, Mr. Venning?" said the hunter, nodding his head at Compton.

"Yes, sir."

"Well, it was because of that story that I have taken you two into my expedition; otherwise I should have been obliged to decline your services on account of your youth. But the story interested me, and I will do my best to help Compton in his search."

"Thank you," said Compton, quietly.

"The Garden of Rest!" mused the hunter. "That, I take it, would be an Arabian phrase; for such a term would not occur to a native, who is too often idle to attach much value to a state of rest. It sounds peaceful; but I have it in my mind that if we ever reach the place, it will be only after much hard work, much suffering, and danger. You understand that this is no pleasure excursion?"

"We do, sir," said Compton; "yet we expect to get much pleasure from the expedition."

"Another word. I am not an exacting man; but there is one thing I will not tolerate, and that is disobedience. It is well to understand that now;" and there came a stern expression into those singular eyes.

"That is only right," said Compton; and Venning agreed.

CHAPTER II

A NOVEL CRAFT

A month was devoted to preparation--a month that was full of pleasure to the two friends, for they came into close touch with Dave Hume the hunter, and learnt to regard him almost as a brother.

Ordinarily, he was curt in his speech and cold in manner, especially with strangers; but at night, when he had shed his boots and coat, he would talk to them freely of his hunting experiences, and listen with interest to their opinions. He never laughed at their mistakes, nor damped their enthusiasm, but he got the best out of them by a fine courtesy that seemed part of his nature.

Thus it was that when, early in the first week, Venning said he had an idea for a boat that could be easily carried round the cataracts and worked without much labour, he was at once encouraged to give plans and specifications.

"I read once about a 'sneak-box'--a flat-bottomed shooting canoe-- that could carry a sail and serve at the same time as a cabin."

"I have used one myself duck-shooting. Go on."

"Well, sir, I built a boat on the plan given, and spent a holiday one year on the Broads. It drew very little water, and was easily managed. However, you know all that. But what I was thinking about was a design for a larger boat of the kind, with a propeller attached to it which could be worked by lever."

"By a lever?"

"Perhaps you have seen a lame man working a bicycle by a lever-- well, after that principle. There would be a steel rod with cog- wheels, and one man could work the lever as the lame cyclist does without the labour of rowing." Venning waited nervously for the criticism.

"At any rate the lever would be a relief after the paddles," said Mr. Hume, gravely.

"But that is not all," continued the inventor, hastily. "I would rig up a light American windmill amidships, which could work the screw and get more speed with a following wind in conjunction with a sail rigged up forward."

"Bravo, my boy!" said Mr. Hume, laughing. "How many revolutions of the screw to the minute do you expect to get out of your windmill?"