The World House, book 1Guy Adams2010

There is a box. Inside that box is a door. And beyond that door is a whole world.

In some rooms, forests grow. In others, animals and objects come to life. Elsewhere, secrets and treasures wait for the brave and foolhardy.
And at the very top of the house, a prisoner sits behind a locked door waiting for a key to turn. The day that happens, the world will end…