The castle is cursed (or blessed) with magic when it's night.
Objects move on their own, books come to you at full speed when you call the title, hell, there are ghosts!

There's even a pantry that is infinite with food, (literally, it's damn maze to find milk, and there's human food too! Like Cheetos!.) luckily, it's like the books. Call out the name and it'll come. But...be specific.

Everything goes back to normal at day, well...except the pantry.
#Dreamworld
@ChainsawJester