The Flaw in All Magic (Magebreakers)

In a city that runs on magic, it takes a man with none to solve an impossible murder.Tane Carver can't use magic, and he doesn't trust it.But he understands it better than most, even in a city of elves and dwarves and sprites and mages.So when an impossible murder is committed on the campus of a warded magical university, he's called in to consult.The only problem is, it's the same university he was kicked out of for lying about his ability to use magic.And the lead investigator is an old flame who isn't so fond of him anymore.