What a wonderful story! Just like a fairytale, a young girl's imaginary friend leaves her when she turns 9. She is supposed to forget, but she doesn't, she never forgets him. What if your imaginary friend was your one true love?
This is just one of those feel good, can't put it down books, only 309 pages it is a very quick read.
James Patterson mainly writes mysteries so I would not normally read a book of his. However, he did write Suzanne's Diary for Nicholas, which was an incredible tear-jerker. This book is very different and maybe that is the influence of Gabrielle Charbonnet, who is a children's author.