"I should explain Scrying. So. Someone with a fourth-circle slot – could be me tomorrow, though if someone else is up for it I could get good use of my Sending today – can attempt to magically observe a creature and their surroundings for at least 7 minutes. By sight and hearing, so we shouldn't go for a mage, actually. And Val won't be able to observe, but Alyssa should be able to, if she wants to."
"If I go for a strong-willed person they might be able to feel it and could try to throw it off, though I suppose I don't know if someone in Sathend would try. Having a good connection helps a lot – it'll work better if you tell the diviner their name and something about them, and something from their body would be great, a possession would be okay, a drawing is better than nothing. Looking for someone who's immature or easily confused or makes poor decisions also helps, but the goal of this is to pass a message, so we'd need to pick someone who would definitely be in the same room as a good messenger."
"Ah, to be clear. I have a spell Sending that lets me send a short message to someone, anywhere, but I have to know whom I'm speaking to, so the Scrying is so I can observe someone. Whoever we contact with Sending can send a similar message back but they might be confused and not actually do so. Between planes, Sending might fail, but we can keep trying. If we involve a wizard they can try to use Message through the sensor, but that usually fails and also would only let us send sounds, so it's probably not worth it."