Readers, this is a quite famous story, about an ancient battle which people still hear re-enacted by phantom soldiers! It has been so often witnessed that it’s the only haunting officially recognised by the UK’s Public Records Office. See more at the Real British Ghosts link to the Edgehill Ghosts article via Edgehill Ghosts
For more ghosts (and other scary things, like my stabs at funny haiku: e-book titles just 99 cents), please see: https://www.amazon.com/Jan-Olandese/e/B071FK9L75