The Valley of the Wolves by Laura Gallego Garcia is an intriguing fantasy novel.  When Dana was a young girl she met Kai, a boy, who soon became her best friend.  She found that others could not see him and wondered if he was a figment of her imagination.  But then the Maestro, a magician, took Dana as his pupil in a far away tower.  There is only one other student at the tower, a strange elf who is far more advanced than Dana in his studies.  Her life is solitary and filled with her studies, though she does befriend Maritta the dwarf who works in the kitchen.  Eventually Dana is forced because of her ability to see Kai, to face what has happened in the tower and what the strange wolves that surround the tower really mean.

Recommend this one to those who enjoy fantasy sprinkled with werewolves and mystery.  Readers are drawn into the strangeness of the story, carried by the simple prose, and will be rewarded by a satisfying ending.