The guide briefly explained, and then turned to the young man.

“But how can you think of leaving your friends in the cave, Laihova? They may require your strong arm; and my sister is—”

“It was my friends who advised me to leave them,” said the youth, quickly, “and Ra-Ruth bade me go. Besides, have we not entered into the Covenant of Blood?”

“Well, you may come with us. After all, Ra-Ruth is right.”

“What does he mean by the Covenant of Blood?” asked Mark when the guide explained what had just been said.

“It means that he and I are united by one of the closest ties that bind the men of this island. No doubt you will think it a strange alliance, nevertheless it is a true and a strong bond of brotherhood. It is meant to unite two people in sacred friendship, so that ever afterwards they feel bound to help and defend each other. When two persons agree to form this bond, a meeting is arranged for the performance of the ceremony and taking the vow. Some gunpowder and a ball are brought, with a little ginger, a spear, and two particular kinds of grass. A fowl is also used. Its head is nearly cut off, and it is left to bleed during the ceremony. Then a long vow of mutual friendship, assistance, and defence is pronounced. After this each man drinks a few drops of the other’s blood. To obtain it they make a small cut in the skin of the centre of the bosom, which they call ‘the mouth of the heart.’”

“And did you go through this ceremony with Laihova?” asked Mark.

“I did, many years ago, when we were little more than boys. He saved my life by jumping into a deep pool in a lake and rescuing me from the crocodiles. I had fallen in off the steep bank. I could not swim, and he could. After that we made the alliance of brotherhood. Laihova was not a Christian at that time. Since then God has made use of me to rescue him from a more awful death than that which threatened me. Laihova is grateful, and, knowing that I run much risk in going near the capital, has come, as you see, to help me.”

“Not a bad style of brotherhood that,” said Hockins, with a tremendous yawn. “Eh, Ebony? What d’ee think of you an’ me goin’ in for the same sort o’ thing?”

“P’r’aps,” answered Ebony, with a responsive yawn which threw that of Hockins quite into the shade, “p’r’aps black blood mightn’t agree wid your stummick. But I say, Massa Breezy, don’ you tink it a’most time we was goin’ to sleep?”