Another free iPhone book, this one kept me longing for answers. The general idea of it - that the earth is just a game to teach children - is mind-boggling. The characters were interesting and relatable, and a lot of thought was obviously put into the world-building aspect. However, I would have taken a little less world-building if I got more character development.

I really want to read the sequel, but first I've got fifteen more free books to read!