Harold and the Purple Crayon Picture Book

"One evening, after thinking it over for some time, Harold decided to go for a walk in the moonlight." So begins Harold's story - he takes his purple crayon and begins to draw his adventure. Eventually, he gets tired and is ready to go to bed, but he can't find his window. Although he draws a lot of windows, he just can't seem to get to his - will he be able to find his window so he can go to bed?