School evocation; Level 2
Casting Time 1 hour
Components V, S, M (inscribed stones to cast into the water)
Optional Components F (the Rl’yeh Tablets give a +5 bonus on the ritual’s skill checks) Skill Check Knowledge (dungeoneering) or Profession (Yog-Sothothery philosopher) DC 14, 1 success
Range 50 miles
Targets up to 20 deep ones
Saving Throw none; Spell Resistance no
This ritual alerts the nearest 20 mature deep ones within range, apprising them of the caster’s location and interest in communication; it delivers no further specific message. The deep ones gain familiarity with the caster as if they had firsthand knowledge (for the purpose of scrying and similar spells) and gain familiarity with the caster’s location as if they had seen it once (for the purpose of teleport and similar spells).
The deep ones otherwise gain no special ability to travel to the caster or communicate. Deep ones will cautiously learn what they can about the caster before approaching or otherwise making themselves known, or simply abduct an apparently weak and vulnerable caster for questioning by their leaders.
Sandy Petersen’s Cthulhu Mythos, © 2017, Petersen Games; Authors: Sandy Petersen, Arthur Petersen, Ian Starcher.