Riddle 3

In the book Slick, Mad World #1 the main character Izabella, is offered a new job, but when she arrives this is what she encounters.

Find the warehouse and climb the steps
Behind door number one is where secrets are kept
You walk down the dark hallway, turn right then left
Until you find the red carpet, and you start counting steps
The closer you get to door number two the harder it becomes
Until suddenly you’re there. And the games have just begun.
Welcome to OZ.