Casting Time 1 minute (2 phases of 5 rounds)
Components V, T (Carcosa’s star system must be above the horizon; depending on the caster’s planet and hemisphere, this may be from mid-Fall to mid-Spring or some other period of months or seasons), F (a magic whistle, or a whistle made magical by an ongoing spell for the duration of the ritual)
Optional Components F (an edition of the King in Yellow with the tune’s sheet music gives a +5 insight to the ritual skill check)
Skill Checks Knowledge (geography) or Profession (Yog-Sothothery philosopher) DC 20, 1 success; Perform (wind) DC 20, 1 success
Range close (25 ft. + 5 ft./2 levels)
Saving Throw Will negates; Spell Resistance yes
This ritual is a short tune played on an enchanted whistle that calls 1d4 byakhee through the void from their native star. Byakhee are hungry but are content to be still and listen to any tune played on magical wind instruments (whether magic items or mundane items under spells).
Sandy Petersen’s Cthulhu Mythos, © 2017, Petersen Games; Authors: Sandy Petersen, Arthur Petersen, Ian Starcher.