Secret Sky

The Secret Sky is a level found in the Castle Crawlspace by looking into the sky in the Outer Garden. This level is similar to Tower of the Wing Cap and Wing Mario Over the Rainbow. It requires the Wing Cap to navigate.

Geography
There are several clouds throughout the level. There is a Wing Cap box found at the starting cloud and other clouds used to fly around the level. There are some red coins around the level, with the star appearing in the middle of the course. Sometimes, in the middle of the course, the Wing Cap cap switch can be found. It is possible this was an early version of Tower of the Wing Cap.

Star
This level's star is found by collecting 8 red coins around the level.