You begin on the landing of a staircase that splits into two. Go ahead up the blue-y green carpet, up the staircase, and you should come to a large open hall of sorts. There is a blue patterned rug with two tables in approximately its center, lined up with the middle of a door and two windows that you can see on the far end. Go ahead, keep moving along the left side of this blue patterned rug, until you reach about the second round table. Once you've got near that second round table, turn slightly right and head towards the door in the middle of those two windows. It should open for you. Step through it. Once you are outside, amongst the pillars, turn to the right. Move to the large column with a pillar on each side of it, to your right. And then, one pillar down from that. Once you have moved to that pillar, you're done.