The Kolad Shards
4-level Evocation (ritual)
Formula Ability Checks: Intelligence (History) DC 17, Intelligence (Arcana) DC 17, Intelligence (Religion) DC 17
Formula Backlash: 4d4 psychic damage
Formula Failure: Magically frightened for 5 days and one level of exhaustion
You alert the nearest twenty Illithid to your location and interest in communicating. You can't convey any more specific message than this. The Illithid get a brief glimpse of your appearance and enough familiarity with you to contact you with sending or target you with scrying. They also gain a clear enough sense of your location to teleport there with teleport as if they had viewed it once. The illithid gain no further special ability to travel to you or communicate with you, however. The illithid might choose to approach and interact with you if such interaction seems safe, productive, and interesting. They will terminate persistent and irritating casters they do not trust by whatever means at their disposal. From negative experience, illithid are wary of being interrogated and tortured for their vast knowledge, and their knowledge of all time makes them adept at judging whether any particular caller with prove such an interrogator.