From the magazines, turn and head back into the central court. From there, turn right and walk until an area of smaller rooms can be seen. An area of trees should be visible. The Temple of Rhea is the last building visible before the trees. It is immediately to the right of the first tree from the central court. Please note that this area is sometimes off limits for visitors, so take a spot on the edge of the central court to see the area and begin the following stories.