Cybermage — Alma Alexander

This year at the Wandless Academy feels all wrong to Thea. Her best friend, Magpie, will barely give her the time of day. Ben's been moody and dismissive. Since when did Tess have a boyfriend? And why is Humphrey May, agent for the Federal Bureau of Magic, lurking around the Academy?

Thea is out of sorts--in all ways, magical and otherwise--and that's before she discovers she's an elemental mage, a category of magician so rare that only four others are known to exist.

Now the Federal Bureau of Magic needs Thea's help to unlock the mysterious white cube--the same cube found over the summer in the professor's house, the same cube the dangerous Alphiri are still after. To stay ahead of the Alphiri and the wiles of the FBM, Thea needs her friends--all of them.

From a world woven with magic and suspense comes Alma Alexander's Cybermage, the final installment of the richly invented Worldweavers trilogy.