Your compulsive need to do things in left-to-right order causes you to choose the middle passage.

After a short trot, you find yourself in the Moon Observatory. There is a large window on one side of the room that overlooks the moonscape outside. A pair of binoculars stands in front.
A small alcove on the wall holds books and knick-knacks. There is a comfortable-looking cushion that looks like just the thing to rest your royal flank upon.