I must be careful how I record my awakening today, for I am unstrung, and much hallucination is necessarily mixed with fact. Psychologically my case is most interesting, and I regret that it cannot be observed scientifically by a competent German authority. Upon opening my eyes my first sensation was an overmastering desire to visit the rock temple; a desire which grew every instant, yet which I automatically sought to resist through some emotion of fear which operated in the reverse direction. Next there came to me the impression of light amidst the darkness of dead batteries, and I seemed to see a sort of phosphorescent glow in the water through the porthole which opened toward the temple. This aroused my curiosity, for I knew of no deep-sea organism capable of emitting such luminosity.

But before I could investigate there came a third impression which because of its irrationality caused me to doubt the objectivity of anything my senses might record. It was an aural delusion; a sensation of rhythmic, melodic sound as of some wild yet beautiful chant or choral hymn, coming from the outside through the absolutely sound-proof hull of the U-29. Convinced of my psychological and nervous abnormallty, I lighted some matches and poured a stiff dose of sodium bromide solution, which seemed to calm me to the extent of dispelling the illusion of sound. But the phosphorescence remained, and I had difficulty in repressing a childish impulse to go to the porthole and seek its source. It was horribly realistic, and I could soon distinguish by its aid the familiar objects around me, as well as the empty sodium bromide glass of which I had had no former visual impression in its present location. This last circumstance made me ponder, and I crossed the room and touched the glass. It was indeed in the place where I had seemed to see it. Now I knew that the light was either real or part of an hallucination so fixed and consistent that I could not hope to dispel it, so abandoning all resistance I ascended to the conning tower to look for the luminous agency. Might it not actually be another U-boat, offering possibilities of rescue?