The Magician's Nephew (The Chronicles of Narnia)

Narnia...where the woods are thick and cool, where Talking Beasts are called to life...a new world where the adventure begins.

DIgory and Polly meet and become friends one cold, wet summer in London.  Their lives burst into adventure when Digory's Uncle Andrew, who thinks he is a magician, sends them hurling to...somewhere else.  They find their way to Narnia, newborn from the Lion's song, and encounter the evil sorceress Jadis before they finally return home.

Enter this enchanted world countless times in The Chronicles of Narnia.  There are seven books in all.