The Dresden Files

A series by Jim Butcher, these novels take the private investigator genre to a new twist, as Harry Dresden, wizard, takes on cases including murder and mayhem by using his magic to track missing items, follow suspicious people, deal with vampires, faeries, and ghouls, and other such adventures. He is assisted by police lieutenant Karrin Murphy of the Chicago Police, a spirit trapped in a skull who goes by the name of Bob, and a thirty-pound cat named Mister.

Other characters in later volumes include Michael, a Catholic Knight of the Cross, Thomas, a White Vampire who feeds through sex instead of blood, and a massive dog known as Mouse who is sensitive to magical and supernatural powers.

A wonderful series of books, and each builds upon the events of the previous books as Harry grows, changes, and learns.

Titles in the series: Storm Front, Fool Moon, Grave Peril, Summer Knight, Death Masks, Blood Rites, Dead Beat, Proven Guilty, and White Night.