[from
here]
Despite the black and starless sky overhead, the air inside the greenhouse seemed to feel warmer than it did during the day. Shikamaru didn't like the smell: something sickly-sweet like rotting flowers, and he switched on his own flashlight despite the need to conserve batteries. Aside from the scent, though, everything seemed normal in the artificial light, and a quick sweep of the room showed no visible beings. He started down a row of plants that had pulled their petals shut against the night sky, and he was inexplicably but strongly reminded of the greenhouses he'd walked through at home.