Eric Ghost is a nice thought right enough. His 'Bogle' supposedly comes from a place name though. In Black's "Surnames of Scotland" it is given as being derived from Bowgyhill in Lanarkshire. The hill may have got its name from the supernatural though.

Bogle can be widened to mean ghouls or other unwordly creatures. Locally we have the Bogley Burn which is a little burn near the foot of the Eildon Hills. The minor road (used to be the main road) between Newtown St Boswells and Melrose was also itself called the Bogley Burn Road. It is on the this read where there is a stone commemorating the supposed position of the Eildon Tree where Thomas the Rhymer was abducted by the Queen of the Fairies. This is also the start of the so called Fairy Dean. The local football side takes a lot of ribbing through their name being Gala Fairydean :-)