"As I remember, I had just woken up from a nap when I decided to create the universe."

So begins Alan Lightman's playful and profound new novel, Mr g, the story of Creation as told by God. Barraged by the constant advisements and bickerings of Aunt Penelope and Uncle Deva, who live with their nephew in the shimmering Void, Mr g proceeds to create time, space, and matter. Then come stars, planets, animate matter, consciousness, and, finally, intelligent beings with moral dilemmas. Mr g is all powerful but not all knowing and does much of his invention by trial and error.

Even the best-laid plans can go awry, and Mr g discovers that with his creation of space and time come some unforeseen consequences--especially in the form of the mysterious Belhor, a clever and devious rival. An intellectual equal to Mr g, Belhor delights in provoking him: Belhor demands an explanation for the inexplicable, requests that the newly created intelligent creatures not be subject to rational laws, and maintains the necessity of evil. As Mr g watches his favorite universe grow into maturity, he begins to understand how the act of creation can change himself, the Creator.

With echoes of Calvino, Rushdie, and Saramago, combining science, theology, and moral philosophy, Mr g is a stunningly imaginative work that celebrates the tragic and joyous nature of existence on the grandest possible scale.