Adjectives that start with "P"?

I'm an amateur author and currently writing a young adults series. There will be four stories in all, and all of the titles are adjectives that start with the letter P. I can't think of a good title for the fourth. The first three are called Perfect, Popular, and Pretty. I wanted the fourth to be a synonym for nice or kind or caring, but I can't think of anything. If anyone has any suggestions, I'd love to hear them :)