(The music above is the music that plays inside Bys' house.)
Satisfied with your consumption (on two levels nevertheless) of the birdseed, you set out to go into your sister's house, once and for all.
Here is the aforementioned greenroom. Full of plants of all shapes and sizes. On the left (from where Syb is standing) row, is the radioactive squash. Radioactive, in your world, means it lasts a whole lot longer, meaning it's not bound by time, but your sister told you it wasn't always like that. You don't know much about radioactivity, but you're certain she does, and she boasts about it all the time, well, most of the time you're there, the other time, she's in-between several different coaxes of chaotic blathering. But every time you have a conversation with that doesn't end with her yelling at you about something abhorrent and beknownst to you, so you're happy she tells you some random nonsense about frogs or whatever.
On the left (from where you view this event) row, is the powerful Chaos Blossoms. Each flower stays in a single state only for a few seconds, then they change shape, color, odor, and really anything else that isn't the fact that they're a flower. Sometimes you catch one of the flowers disappearing, but they usually stay contained to this room.
You've planted a few plants in this room, but most of them died because you weren't there to water them, and also that your sister used some of them for one of her many experiments. You're pretty sure that her relationship with you is one of those experiments, but you're not entirely sure, better keep an eye out for her.
Along with being a hub to get to the graves, the greenhouse contains one of your house's two elevators. This elevator goes all the way down to your sister's laboratory. You look down at the shaft.