The Books of Magic #1: The Invitation (Books of Magic, 1)

Do you believe in magic? Timothy Hunter is just like any other thirteen-year-old boy in London . . . except for the tiny fact that he might be the most powerful magician of his time. When four strangers offer to show Tim the realms of magic, he begins a journey beyond imagination. Wizards pursue him, danger threatens at every turn, and he discovers powerful forces that want him on their side -- or dead. Thirteen-year-old Tim discovers he may be the greatest wizard of his time when four strangers introduce him to the world of magic, taking him on a journey through the past, present, future, and Faerie realms, where danger threatens at every turn.