What a beauty he is!! The reason there's nothing in the box is he probably hasn't eaten in a while, being as skinny as he is.

Make sure he's got water as well as the food. Keep a bowl of dry food available all the time. Cats like to nibble.

I like the name Pepper! I don't see why you can't keep him in your room with his litterbox, food and water. At least he won't be alone.

Please, if you can, make sure you have him tested for Feline Aids and Feline Leukemia and also have him vaccinated.

Good luck with your new puddy. Keep us posted!!