*Tidebringer imagines the conversation..."Greetings!"
"Greetings," and pulls out a thermos, opening it and sniffing the still-hot contents.
"What have you there?"
"Oh, this? Tea."
"No, no. But it's warm, and still, so far from any city?"
"Why, yes. It's the Red Way enchantment, you know? See these
lovely diamonds?"
"Indeed..." then frowns.
"Why the frown?"
"Only, that I am a bit unsure of the wisdom of carrying such an item about, would the Red Way not be hazardous to yourself?"
"Oh, no, not at all! It was done by one of the most skilled..." [etc, etc, etc.]
Well, you get the point. How's it work? MAGIC!
Why does it exist? Because it was needed, clearly. Why were two people talking like that "so far from any city"? Well... because it's how I wrote it.
*Tidebringer, so off-topic, contemplates the quality of her imagined conversation...