The Shape-Changer's Wife — Sharon Shinn

Once there was a young man who wanted to be a wizard...

Aubrey was a student, gifted in the fine art of wizardry. But the more knowledge he acquired, the more he wanted to learn.

So he traveled to a faraway land in search of the greatest master of all, the powerful shape-changer Glyrenden. From him, Aubrey expected to discover the secret of long-lost spells and the mysteries of arcane magic.

But there was one discovery he never expected, one mystery he risked everything to solve.

Her name was Lilith.