It's an engaging discussion they're having, but besides the point.
Malduoni has been considering his options.
- he could try just talking. He would probably start there, if it were only Leareth - but the Chelish wizard is a complication. And so is the fact that, locally, Foresight still works, and Leareth seems to have gotten on the wrong side of every single god in this world. Malduoni has to assume that the Star-Eyed Goddess and Vkandis are very unhappy over Leareth's escape, and will be paying as much attention to his operations as They can manage. He has to assume that the gods will notice something as soon as he makes any move with Leareth; They may not know what, but clearly that only stresses Them out even more. And hopefully Leareth has taken sufficient precautions, but...obviously he'd thought so before, too, and hadn't expected Vkandis to pull out an intervention as blatant as an earthquake right there.
(It reminds him a little of the gods' interventions in the civil war in Cheliax, a century ago now. How clumsy they were, newly-blind and frightened -)
Better to have a conversation once they're not in Velgarth. And convincing Leareth to leave willingly with him would require an entire conversation of its own, and - one that would be much harder to manage with the Chelish wizard to account for - Malduoni is pretty sure that even if he were to try approaching Leareth in private, the man would pull in his Golarion liaison for help -
He has a good read on Leareth, he thinks. The man won't hold Malduoni's paranoia against him, once he's explained.
The problem is that, while Carissa Sevar might be only third-circle, Leareth...should be considered to be close to equivalent to a ninth-circle caster, in some if not all ways. He's very well shielded; he'll be able to effectively throw off many spells. And his reflexes are very, very good.
The best cheap option is, probably, to cast Dominate Person on Carissa and have her control Leareth using the existing geas she has on him. But if he does that when Leareth's current permission to 'do whatever actions he wants' is still active, that would give Leareth plenty of time to react, quite possibly enough to Gate out or incapacitate Carissa and prevent her from speaking. If he tries to wait, one, they seem likely to be at this conversation for a while, and two, Dominate Person is going to be quite visible to Velgarth mage-sight. If one of Leareth's staff comes to collect Carissa to have her redo his instructions, they'll notice it.
Fine. The absurdly expensive option is still very clearly worth it.
Malduoni leaves, silently, with a minute left on Invisibility and Gaseous form. Enough to make it back safely to his Rope Trick, which he plans to just leave there. In a few minutes, it won't matter anymore.
He Plane Shifts out. Back to Golarion, though who knows exactly where he'll land - he's just heading onward straight to his personal demiplane, anyway -
- some Random farmland, it turns out, well out of sight of the nearest human habitation.
And then onward, again, to a quiet peaceful library.
He's been gone for a while, and really owes some people a quick update on his wellbeing. For now, he settles for a Sending to Parmida, reassuring her that he's back in Golarion, safe and unharmed, and will catch her up soon.
He has diamonds here, of course, and he already prepared Wish for one of his ninth-circle slots today. The wording for grabbing two specific people from somewhere else is known and not complicated.
He casts it.