Miss J M Dunn is another reliable witness who claims, on a clear moonlit night, to have seen a number of small human-like figures abroad; figures that seemed to hurry from one spot to another and then back again as though preparing for some festival or special occasion; figures that were plainly there one moment and gone the next [..] There have also been stories of phantom horsemen being seen in the vicinity of Avebury Circle, riding wildly over the ground on small horses with flowing manes.
p10 in ‘Ghosts of Wiltshire’ by Peter Underwood (1989).