Malduoni hovers, and listens.
Leareth is very intriguing. And - confusing. It's clear enough from the man's thoughts that he's opposed to Asmodeus goals, though he's avoiding bringing this up with the cleric, for the incredibly obvious reasons. Though he's holding significant uncertainty about what Asmodeus is really like, he knows all his information has been filtered, both by Chelish propaganda-incentives and - perhaps more importantly - across a vast culture gap. That particular uncertainty, he does hint at in the negotiations - that, while he's certainly willing to make some agreements with them now, he's not going to commit to anything involved, and especially not any kind of special relationship with Cheliax over other Golarion countries, until he's seen their world for himself.
He does not, in fact, currently want to fight Cheliax or Asmodeus directly; he isn't lying about that to the diplomat. But it's largely a matter of resources. Leareth isn't lying either, that he disprefers war. And he's appropriate cautious about throwing himself headfirst into a situation in another world while he's still missing vast swathes of context. Throughout, though, it floats in the back of his thoughts that he will someday, probably, want to do something about Hell. What, he doesn't yet know.
Leareth is - mostly handling himself quite well in the conversation, Malduoni thinks, for someone who must have such a limited understanding of Asmodean philosophy and culture. He emphasizes the aspects of his work and goals that he expects to seem most legible and unsurprising to a Lawful Evil mindset.
- he wants to build a god. Had intended, originally, to do this via murder on a vast scale. He doesn't, quite, say that outright to the cleric, but he does hint at the scale of his plans. In a way that conveys ambition and power and ruthlessness, and quietly emphasizes exactly what he's doing it all in service of.
Which is fixing everything and saving everyone. That part isn't hard for Malduoni to pick up on. Perhaps just because it's so deeply legible to him. There's a relentless determination behind all of Leareth's thoughts and it's...oddly, uncannily, bafflingly familiar. And yet something is strange and off at the same time, and he can't pin it down, can't quite give a name to it...
Leareth agrees - after quite a lot of back and forth, but his decision was made from early on - to stay out of the situation in Iftel, in exchange for some initial help accessing Golarion, and non-interference from Cheliax once he's there. The part he doesn't say explicitly is that this is a very cheap concession for him, since Vkandis apparently personally hates him and might try to quash any plans he attempts in Iftel even if he's trying to help. (Leareth thinks that Vkandis understands human motives poorly, and - especially given how noisy Foresight must be, with all the foreign interference flying around - might not be able to tell what Leareth is trying to achieve.)