Keltham's face doesn't change expression.  "If I destroy Cheliax, some people go to Hell today, fewer people go to Hell later, more resources are diverted from Good countries to fight the Worldwound, and my later dealings with Asmodeus are more fraught.  I've already had this argument with Carissa Sevar and she's smarter than you and has more complete information."

"My function for whether it's worth destroying Cheliax to destroy some number of unrecorded children there, given that I have a second number of untraceable children outside it, is a complicated one.  It's simpler for you to tell me those two numbers straight.  Tell me the complete details on what Abrogail Thrune has done, in case I can think of a solution Hell cannot."

Keltham's face doesn't change expression.  "If I destroy Cheliax, some people go to Hell today, fewer people go to Hell later, my later dealings with Asmodeus are more fraught, and I'd need to delay to do something about the Worldwound once Cheliax can't help fight it and the Worldwound isn't needed to occupy Cheliax.  I've already had this argument with Carissa Sevar and she's smarter than you and has more complete information."

"My function for whether it's worth destroying Cheliax to destroy some number of unrecorded children there, given that I have a second number of untraceable children outside it, is a complicated one.  It's simpler for you to tell me those two numbers straight.  Tell me the complete details on what Abrogail Thrune has done, in case I can think of a solution Hell cannot."

Keltham's face doesn't change expression.  "If I destroy Cheliax, some people go to Hell today, fewer people go to Hell later, my later dealings with Asmodeus are more fraught, and I'd need to delay to do something about the Worldwound once Cheliax can't help fight it and the Worldwound isn't needed to occupy Cheliax.  I've already had this argument with Carissa Sevar and she's smarter than you and has more complete information."

"My function for whether it's worth destroying Cheliax to destroy some number of unrecorded children there, given that I have a second number of untraceable children outside it, is a complicated one.  Tell me those two numbers straight.  Tell me the complete details on what Abrogail Thrune has done, in case I can think of a solution not apparent to the devils containing this negotiating-information."