Balancing ball

I've blipped the ruins of the Old Kirk in Killearn before, but had never noticed the stone ball perched precariously on that apex. 

I only read about it on one of the new Killearn Heritage Trail notice-boards this morning when I was killing a few minutes before my haircut appointment.

Tomorrow bestie Gill and I are off to Kinross for a couple of nights, hoping to explore a bit of Fife, so fingers crossed for fine weather...