# Fey (dNetHack)
In dNetHack, certain monsters are classified as fey, marked by the MA_FEY flag in the source.[1][2]
Those monsters are:

f&nbsp;displacer beast
l&nbsp;leprechaun
@&nbsp;doppelganger
the Eladrin and their Lords and Ladies
C: Synaisthesia
&amp;: Alrunes
y: tiny being of light
q: q&nbsp;leocrotta, q&nbsp;wumpus
u: all unicorns and nightmares
n: n&nbsp;quickling, dryad, naiad, oread, swamp nymph, yuki-onna, deminymph, Echo, Aglaope, Nimune
References

↑ https://github.com/Chris-plus-alphanumericgibberish/dnethack/blob/master/dnethack-3.4.3/src/monst.c in NetHack 3.4.3, line 1

↑ https://github.com/Chris-plus-alphanumericgibberish/dnethack/blob/master/dnethack-3.4.3/src/monst.c in NetHack 3.4.3, line 260