She knew many of the dealers quite well, and often had long talks with them about the mysterious country from which they came. Whitemen had not yet entered into the heart of it, but Ma learnt enough to be sure that it was a far more wicked place even than Okoyong had been. It was called Iboland, and one of the tribes, the Aros, were so cunning and clever that they had become a power over a vast region. It was they who were the slave-stealers, seeking their victims everywhere, and selling them in markets to the traders. One of their best hunting-grounds was Ibibio, the country to the south, where the natives were poor and naked and miserable, and lived in little settlements deep in the forest, because of their fear of the slave raiders.

The Way into the Juju Glen.

The Aros believed that they had a wonderful chuku or juju—which means the god of the Aros—in a rocky gorge down which a stream flowed. At one spot there was a dark ravine and a pool overhung by trees and creepers. Here, amongst the white lilies, swam ugly cat-fish, with fierce-looking eyes, that were held to be sacred, and which it was death to catch. On a little island was a hut, guarded by priests, in which the juju was supposed to live. The people thought it could aid them in time of trouble, and came in great numbers to the shrine to ask advice and get their quarrels made up. Though the priests helped many in this way, they were cunning and greedy, and often acted very cruelly. They took the food and money which the visitors brought, and then said the juju wanted a living offering. So some poor man or woman was taken into the glen blindfolded, and the friends of the victim knew that the sacrifice was made by seeing the blood flowing past lower down.

Others who entered never came out again. The priests said they had been seized by the juju, and the blood-red river seemed to show this, but a dye had been thrown in to colour the water. These persons were taken far away in secret, and sold into slavery. Any that were not of much value were slain and eaten in the cannibal feasts.

Now that Ma's dream of conquering Okoyong had come true, she was dreaming other dreams, and the most fascinating of these was to go to this terrible cannibal country and put down the evil doings of the natives. She told the slave-dealers about it.

"All right, Ma," they said, for they liked her, and admired her courage. "We, who know you, will be glad to welcome you; but we are not sure about the priests—they may kill you."

"I will risk that," she said; "as soon as I can get away from here you will see me."

In order to find out more about the tribes, she sometimes went far up the Cross River in a canoe, stopping wherever she could get shelter. On one of her journeys, when she had some of the house-children with her, the canoe was attacked by a huge hippopotamus. It rushed at the canoe, and tried to overthrow it. The men thrust their paddles down its throat and beat it, but it kept savagely nosing and gripping the frail vessel. Great was the excitement. Its jaws were snapping, the water was in a whirl of foam, the men were shouting and laying about them with their paddles, the girls were screaming, Ma was sometimes praying and sometimes giving orders. At last the canoe was swung clear, and paddled swiftly away.