Cam is dipping a grilled cheese sandwich into a bowl of tomato soup when he feels the summons. He goes ahead and grabs it. Doesn't even drop the sandwich.
"I want to generally get a feel for the unphysics. I don't want to assume it's like video games and get tripped up when it fails to be like video games in some way, or winds up being like different video games from those with which I am familiar."
He flies to the island with the glass-blocked treehouse.
He goes home. He makes dinner for himself and Sable. Over lamb and cauliflower and clam chowder: "Do you want to try some futuristic painkillers for your groundsense thing?"
"I don't know, that's why I said 'try'. I am a well-qualified medical demon but I have no idea whether your thing will interact with painkillers at all."
Cam goes and reads and practices his violin. Eventually he goes to sleep.
He ices them all, grumbling, and stays up the rest of the night with a book, floating in a pool chair on the assumption that they probably don't swim.
It's a pretty deep pool. He ices them whenever he hears splashing. If he has to empty and refill his pool because of this that will be annoying but so far gore disappears.
Cam goes through the house uncleaning them all up. He swims for the dropped loot and puts it all in his closet. He goes over to Sable's.
Sable is up and sitting at her complicated desk, where there sit a pair of miniaturized blue demon wings.
"Hey, you got it to work. Also good morning. Also, I bet your house does not spawn zombies at night, why might that be?"
"...oh, blight it!" she says. "It's probably because mine's made of blocks. Monsters can't appear inside enclosures of blocks - ones other than dirt and stone and so on, I mean. They can appear in caves but not houses. Your house probably doesn't count because it isn't made of blocks."