He has some bad-idea thoughts about keeping Nott from being squashed but they're lost in the bottom of the sea of Lucifer's mind in that they're not shared at all with Istredd. Later, perhaps, when he judges the value of these ideas and he needs the mage's skill.

The war will come to a head again at some point. That might provide them with the greatest distraction, depending how Thorne chooses to wield its Summoned. But perhaps Nott will be able to fall to the wayside if Thorne and Free Cities goes at it for real.

He doesn't even want to think about Solvunn likely coasting in the background again, despite everything.

Oh, yes, an island, he drawls, like the island you were holed up on. Maybe whatever creature my brother released has cleared it all out and is just waiting for him to come back.