In Advanced Dungeons and Dragons
, beginning with the First Edition's Monster
II, an alu-demon is a female half-fiend. Designed as a counterpart to
, the alu-demon is said to be the offspring of a mortal male and a
or other female demon
). While this does not accord with
the tradition folklore of incubi
, it does provide yet another
monster with an appearance superficially like that of a beautiful woman.
Specifically, alu-demons are described as appearing essentially like attractive
human or half-elven females, but with a pair of vestigial bat-like wings
(readily concealed beneath a long cloak). As with cambion
s, this description
is not constant.
In the 'tidier' Second Edition, alu-demons were known as alu-fiend
Edition groups them all together under the heading 'half-demon'. In
, they might arguably have been regarded as tiefling
s, but the new
edition seems to suggest that a tiefling is less
than half a demon.