“Our⁠—symptoms let me call them⁠—could all very easily be accounted for. It is unquestionable that the vibrations created by certain musical instruments have definite and sometimes extraordinary effect upon the nervous system. We accepted this as the explanation of the reactions we had experienced, hearing the unfamiliar sounds. Thora’s nervousness, her superstitious apprehensions, had wrought her up to a condition of semi-somnambulistic hysteria. Science could readily explain her part in the night’s scene.

“We came to the conclusion that there must be a passageway between Ponape and Nan-Tauach known to the natives⁠—and used by them during their rites. We decided that on the next departure of our labourers we would set forth immediately to Nan-Tauach. We would investigate during the day, and at evening my wife and Thora would go back to camp, leaving Stanton and me to spend the night on the island, observing from some safe hiding-place what might occur.