Graves and Ghosts

First Grave on the Right by Darynda Jones
Charley Davidson is a part-time private investigator and full-time grim reaper. Meaning, she sees dead people. Really. And it's job to convince them to "go into the light." But when these very dead people have died under less than ideal circumstances (like murder), sometimes they want Charley to bring the bad guys to justice. Complicating matters are the intensely hot dreams she's been having about an entity who has been following her all her life...and it turns out he might not be dead after all. In fact, he might be something else entirely. But what does he want with Charley? And why can't she seem to resist him? And what does she have to lose by giving him up?

The Anatomy of Ghosts by Andrew Taylor
The ghost of Sylvia Whichcote is rumored to have been haunting Jerusalem ever since student Frank Oldershaw claimed to have seen the dead woman prowling the grounds and was locked up because of his violent reaction to these disturbed visions. Desperate to salvage her son's reputation, Lady Anne Oldershaw employs John Holdsworth, author of The Anatomy of Ghosts--a stinging account of why ghosts are mere delusion--to investigate. But his arrival in Cambridge disrupts an uneasy status quo as he glimpses a world of privilege and abuse, where the sinister Holy Ghost Club governs life at Jerusalem more effectively than the Master, Dr. Carbury, ever could. And when Holdsworth finds himself haunted his fate is sealed. He must find Sylvia's murderer, or else the hauntings will continue.