"So he's a river demon who makes deals"
- "What kind of deals?"
"Oh you know - the demon kind. Like he makes a deal and it has a price to be paid"
- "yeah but what's the price"
"oh-ho-ho it's a high price indeed"
- "Yes... but what is it?"
"Well it's not the price anyone would agree to if they knew it going in"
- "Okay, yeah, I get the concept Deal with the Devil, TV Tropes, I know. But what actually happens"
"Well, he sates his appetite"
- "So he eats them?"
"oooh old tahm kench hungers for more than just flesh"
- "So... what, he eats the irony? What does he actually get from their end of the deal?"
"Just you wait, you'll see... what happens to people who let Tahm in"
- "In where? Is he eating them or is he, now, possessing them?"
"Oh believe me, Tahm has a voracious appetite"
- "So he DOES eat them"
"Only if they agree to step inside his mouth and the abyss within"
- "Okay great, so he does eat them. Moving O--"
"Yes, and he takes them to where they dare not dream to go"
- "Wait... so eating them is how he fulfils HIS part of the deal, what's their part then?"
"Everyone ends downriver... eventually"
- "Literally - what does that even mean."