He's going to be stubborn about this, damn it, just let him be. The fact that he's defaulting to magic-related ideas to try and help is only going to earn him a look of utter disbelief. For all he knows, a spell to put him to sleep might go horribly wrong, so no thank you.

"Yes," Childermass says that a little too harshly and he doesn't even feel bad for it. "I am sure."

That said...

"Miss Nanami mentioned a few others are still missing. I doubt we'd leave without them, even if there is a threat."