If You Love Harry Potter . .
.
Try these Magical Adventures
So You Want to Be a Wizard by Diane Duane
Thirteen year old Nita, tormented by a gang of bullies because
she won't fight back, finds the help she needs in a library
book on wizardry which guides her into another dimension.
The Secret of Platform 13 by Eva Ibbotson
Every nine years, a door opens from an unused London railway
platform into a magical land filled with strange and wonderful
beings. The infant Prince of this land has been kidnapped and
trapped in our world; now, after nine years, a rescue team of
wizard, fairy, ogre, and hag assembles to bring him home.
The Lives of Christopher Chant by Diana Jones
Young Christopher Chant, in training to become the next Chrestomanci
or head controller of magic in the world, becomes a key figure
in a battle with renegade sorcerers because he has nine lives.
Sandry's Book by Tamora Pierce
Four young misfits find themselves living in a strictly disciplined
temple community where they become friends while also learning
to do crafts and to use their powers, especially magic.
(First in the "Circle of Magic" series)