strange abound …

[kossai]

 ... hear this strange , almost otherworldly wail . can not imagine what would explain this sound among mundane objects and events ... but know was not alone in hear , and did catch small snippet in audio - can safely rule out random hallucination .

for something that clearly others could hear as well , probably not actually otherworldly origin ... but without any clue or hints even , will like to imagine world of home safety hotline . :P