It was at Old Town that she came first into close contact with the more sinister aspects of mission work, and obtained that training and experience in dealing with the natives and native problems which led her into the larger responsibilities of the future. Despite the influence of the missionaries and the British Consul, many of the worst heathen iniquities were being practised. A short time previously the Consul had made a strong effort to get the chiefs to enforce the laws regarding twin-murder, human sacrifice, the stripping and flogging of women by Egbo-runners, and other offences, and an agreement had been reached; but no treaty, no Egbo proclamation could root out the customs of centuries, and they continued to be followed, in secret in the towns and openly in the country districts.
The evil of twin-murder had a terrible fascination for her. A woman who gave birth to twins was regarded with horror. The belief was that the father of one of the infants was an evil spirit, and that the mother had been guilty of a great sin; one at least of the children was believed to be a monster, and as they were never seen by outsiders or allowed to live, no one could disprove the fact. They were seized, their backs were broken, and they were crushed into a calabash or water-pot and taken out--not by the doorway, but by a hole broken in the back wall, which was at once built up--and thrown into the bush, where they were left to be eaten by insects and wild beasts. Sometimes they would be placed alive into the pots. As for the mother, she was driven outside the bounds of decent society and compelled to live alone in the bush. In such circumstances there was only one thing for the missionaries to do. As soon as twins were born they sought to obtain possession of them, and gave them the security and care of the Mission House. Some of the Mission compounds were alive with babies. It was no use taking the mother along with them. She believed she must be accursed, for otherwise she would never be in such a position. First one and then the other child would die, and she would make her escape and fly to the bush.
Mary realised that the system was the outcome of superstition and fear, and she could even see how, from the native point of view, it was essential for the safety of the House, but her heart was hot against it; nothing, indeed, roused her so fiercely as the senseless cruelty of putting these innocent babes to death, and she joined in the campaign with fearless energy.