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 mean, at least in a local sort of sense things seem to work on normal phyiscs when that's how they start out. When I encased the harpies in gold they fell; my wings still work; conjuring up your lunch was normal. Will the guide say whether, say, titanium, is better than chlorophyte, or just tell us that you can make armor out of it if you want?"
"He'll just list off all the recipes he knows about that include whatever you just handed him. He doesn't say how good they are. But tools sort of 'know' how good they are, so if we actually made one, we could find out that way."
They're overflying the island now, and up ahead there is... a house. It appears to be floating totally unsupported in midair, fringed with wooden platforms. Sable lands on one.
"In Terraria," says Sable, with ironic cheer, "when you build a structure out of blocks and mine out the parts connecting it to the ground, it doesn't fall down."
"It has a logic all its own - you can't place an unsupported block, but once a block is placed, what holds it up isn't its neighbours, it's... something about the invisible grid."
"Which is also very video-gamey. I will show you some super dated video games and we can see if you think it's creepy."
She opens a door in the side of the house and folds her wings neatly and steps inside.
This room of the house is full of things. A table with a bottle on it; a small bench; a forge or fireplace plated with some bright metal; an anvil, a sawmill, a loom, a large iron pot, an extremely complicated-looking desk, a barrel with colourful glass tubing attached, a bookcase...
"Right, about that enormous pile of chlorophyte?"
Cam makes an enormous pile of chlorophyte, arranged vertically so it will fall into itself.
"You can have the tools," she says, waving at them. "If you want a set. The pickaxe mines blocks that aren't wood, the axe mines blocks that are wood, the hammer takes down thin walls and reshapes blocks. Hammers also have weird specialized uses you probably don't need to care about."
Cam takes some tools. "That was fast. I'll take the tools, I suppose. What is the advantage besides cool factor of having a floating house?"
"Walking corpses can't bang on the walls at night. The eyeballs can, but they're quieter."
"I should probably make myself a house. I guess I should put the entire thing on a support structure of floating blocks. Can a block hold arbitrary amounts of weight?"
"...I have no good way to test how much ordinary weight a block can hold," she says. "Not at house-sized amounts. Do you not want to make your house out of blocks?"
"No, not really. It's faster and more customizable if I just," gesture, "make the house. Unless there is some advantage to blocks besides floatability?"
"Guarantee that your house will not fall down unless someone goes at it with a pickaxe? And do you know that you can't make blocks? You can make them in tiny cube form, after all."
"Maybe I can make blocks, but like - I'm accustomed to houses with electrical systems and plumbing in the walls and glass in the windows and while there is some lovely ocean around here I bet it's full of monsters and I got used to having a swimming pool? I am also not so much here for the blocks aesthetic. Maybe there's nothing else for it for reasons of defensive architecture, but."
"Well, this house is not really built to show off the grace and style of block architecture," she says. "And there is such a thing as a glass block, it's possible to have glass windows in a block house, I just don't like being able to see things hitting them at night."
"Oh, yeah, I'm not criticizing your interior decoration, here, but I'm a demon," he says, "and do not have to be particularly careful about priorities when I want material objects. Do glass blocks focus sunlight in a way that makes things warm? I could encase my entire house in glass for defense reasons. If you can make a glass door which also works in a defensively appropriate manner."