Kauhi now feared that some deception might be practised. His proposition had been so eagerly accepted that he became suspicious; therefore he consulted the sorcerers of his own family. They agreed that it was possible for some powerful kahuna to present the ghost of the murdered maiden and so deceive the judges. They decided that it was necessary to be prepared to test the ghosts.

If it could be shown that ghosts were present, then the aid of "spirit catchers" from the land of Milu could be invoked. Spirits would seize these venturesome ghosts and carry them away to the spirit-land, where special punishments should be meted out to them. It was supposed that "spirit catchers" were continually sent out by Milu, king of the Under-world.

How could these ghosts be detected? They would certainly appear in human form and be carefully safeguarded. The chief sorcerer of Kauhi's family told Kauhi to make secretly a thorough test. This could be done by taking the large and delicate leaves of the ape-plant and spreading them over the place where Kahala must walk and sit before the judges. A human being could not touch these leaves so carefully placed without tearing and bruising them. A ghost walking upon them could not make any impression. Untorn leaves would condemn Mahana to the ovens to be baked alive, and the spirit catchers would be called by the sorcerers to seize the escaped ghost and carry it back to spirit-land. Of course, if some other maid of the islands had pretended to be Kahala, that could be easily determined by her divine ancestor Akaaka. The trial was really a test of ghosts, for the presence of Kahala as a spirit in her former human likeness was all that Kauhi and his chief sorcerer feared. The leaves were selected with great care and secretly placed so that no one should touch them but Kahala. There was great interest in this strange contest for a home in a burning oven. The imus had been prepared: the holes had been dug, and the stones and wood necessary for the sacrifice laid close at hand.

The king and judges were in their places. The multitude of retainers stood around at a respectful distance. Kauhi and his chief sorcerer were placed where they could watch closely every movement of the maiden who should appear before the judgment-seat.

Kahala, the rainbow-maiden, with all the beauty of her past girlhood restored to her, drew near, attended by the two spirit-sisters who had saved and protected her. The spirits knew at once the ghost test by which Kahala was to be tried. They knew also that she had nothing to fear, but they must not be discovered. The test applied to Kahala would only make more evident the proof that she was a living human being, but that same test would prove that they were ghosts, and the spirit-catchers would be called at once and they would be caught and carried away for punishment. The spirit-sisters could not try to escape. Any such attempt would arouse suspicion and they would be surely seized. The ghost-testing was a serious ordeal for Kahala and her friends.

The spirit-sisters whispered to Kahala, telling her the purpose attending the use of the ape leaves and asking her to break as many of them on either side of her as she could without attracting undue attention. Thus she could aid her own cause and also protect the sister-spirits. Slowly and with great dignity the beautiful rainbow-maiden and her friends passed through the crowds of eager attendants to their places before the king. Kahala bruised and broke as many of the leaves as she could quietly. She was recognized at once as the child of the divine rain and wind of Manoa Valley. There was no question concerning her bodily presence. The torn leaves afforded ample and indisputable testimony.

Kauhi, in despair, recognized the girl whom he had several times tried to slay. In bitter disappointment at the failure of his ghost-test the chief sorcerer, as the Kalakaua version of this legend says, "declared that he saw and felt the presence of spirits in some manner connected with her." These spirits, he claimed, must be detected and punished.

A second form of ghost-testing was proposed by Akaaka, the mountain-god. This was a method frequently employed throughout all the islands of the Hawaiian group. It was believed that any face reflected in a pool or calabash of water was a spirit face. Many times had ghosts been discovered in this way. The face in the water had been grasped by the watcher, crushed between his hands, and the spirit destroyed.

The chief sorcerer eagerly ordered a calabash of water to be quickly brought and placed before him. In his anxiety to detect and seize the spirits who might be attending Kahala he forgot about himself and leaned over the calabash. His own spirit face was the only one reflected on the surface of the water. This spirit face was believed to be his own true spirit escaping for the moment from the body and bathing in the liquid before him. Before he could leap back and restore his spirit to his body Akaaka leaped forward, thrust his hands down into the water and seized and crushed this spirit face between his mighty hands. Thus it was destroyed before it could return to its home of flesh and blood.

The chief sorcerer fell dead by the side of the calabash by means of which he had hoped to destroy the friends of the rainbow-maiden.