This is the first cache in the 'Spooked' series, a series of caches at creepy feeling or supposedly haunted places. Obviously you don't need to believe in ghosts to be able to enjoy the caches.
From Paranormal Database:
Location: Hope - Aston Lane, near the railway bridge, skies over
Type: Haunting Manifestation
Date / Time: April 1995
Further Comments: Witness Tony Ingle watched a totally silent aircraft fly past him, a mere 15 meters above the ground, before it dived behind a hill. Expecting to find the crash site, Mr Ingle investigated but found nothing there.
The cache is a small pot with room for swaps but BYOP. Please replace exactly as found and rehide well, complete with stickflage. At GZ, you can see trains passing onthe Hope Valley Line.
Logging Etiquette: Geocache hiders sometimes go through a great deal of planning to place their caches. As a result, they'd like to hear your feedback on whether you liked or disliked any aspect of the hide, or if you feel that some cache maintenance is required. Single word, acronym, or emoticon logs may be easier when you have a lot of caches to log, but it doesn't tell the hider or other finders anything about your adventure (or lack thereof) in finding the cache. Please keep this in mind when entering your log.