(A). A banshee or grey-spectre.
“Know then (said Eveline) it [the Bahr Geist] is a spectre, usually
the image of the departed person, who, either for wrong suffered
sustained during life, or through treasure hidden, haunts the spot from
time to time, becomes familiar to those who dwell there, and takes an
interest in their fate.” —
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894