2:38 go through this door don't go through the door that has star on it then go to the the furnace and in this 1:56 room after going through the door you'll find a item next to the furnace and then go through the same door again you'll find another item where you found the key and then go to the door a third time you'll find a brick wall use the items that you collected onto the brick wall and then go through the door you'll find the second ending