The 'Baht 'at' Is a form of Earth spirit that roams Ilkley Moor mourning the loss of it's lover , the 'Ma' rejain'.
It entices people to wander of the only track across the moor when it is very misty. The doomed traveler hears a sad mournful wail and, thinking it is a fellow traveler in distress, walks off the track and is soon completely disorientated.
Their pathetic corps may be found by others days later.
People traveling across from Keighley to Ilkley are encouraged to sing the song 'Ilkla Moor Baht 'at' as loudly as possible and for as long as it takes to cross. This is why the song has so many verses.
It is said this comforts the Baht 'at, and it lets them pass unmolested.
INT21.