Ivan must be drunker than he thought he was. He could have sworn he knew his way around Vivienne's parents' house, since she wanted to introduce him last week and showed him the place, but maybe they have a... secret... upstairs... bar? where Vivienne's room is supposed to be? And most certainly was last time he checked? He's never going to find the sweater she sent him up looking for here, anyway. Why is there a secret upstairs bar in Vivienne's parents' house?
"Fine. But if I spot it happening I will treasure the memory forever."
Ivan escapes from a maze only to find, predictably, another one. This one is gimmick-ly snowy. Certain parts must be navigated by ice-sliding.
"Oh, uh. When it's cold little bits of ice fall from the sky. 'S called snow. ...When it's not cold little bits of non-frozen water fall instead, that's rain."
"It is," Miles agrees.
"If one is eight years old one can turn it into sculptures. If one is not eight years old the sophisticated adult version involves blocks of ice and power tools."
"'Power tools', as a category: drills and saws and so on cleverly designed to do more of the work for you than the versions you're used to," says Miles.
"Nice," says Stalas. "So what if one is neither eight years old nor feeling sophisticated and adult?"
"Eh, building snowmen after age eight isn't illegal. I've done it."
"Sounds like fun. Might even be worth staying under the sky for long enough," says Stalas.
"No. If you put something solid between you and the sky the snow lands on that and then you have a hard time doing anything with it."
Ivan gets out of an ice patch and back into a maze of snow-brick walls.
Eventually the snow maze is defeated. The next section is underground. There is lava. It is not especially realistic.
"...I'm not sure whoever made that had ever seen lava," says Stalas. "Or rock. I'm pretty sure they'd never seen rock either."
"They have almost certainly seen rock, and not lava. Just guessing. I guess you never know for sure with software people."
"Or this is based on rock on a planet very geologically unlike yours."