Grave Peril, by Jim Butcher

Chicago's ghosts are in a tizzy, and the border with the Nevernever is very tenuous. Harry is called in to exorcise a ghost who is sucking the breath out of newborns, and is subsequently drawn into conflicts with ghosts, vampires, and faeries galore as he tries to discover the root of the problems with the supernaturals.  Everybody he is close to is in danger.  If Harry weren't funny from time to time, I would give this Picaresque series up.

Small Favor, by Jim Butcher

I have a feeling the Dresden Files are best read sequentially. Small Favor (book 10) is so full of threads from previous books, it is a testament to Butcher's skill that it is readable as a stand-alone at all.  A few things are specific to this book, the kidnapping of a gangster and of the Archive, and an attack on Dresden by the Billy Goats Gruff.  A few seeds are planted for follow-up in the next books, like Michael's condition and Harry's emerging precognitive gifts.  Harry's smart mouth continues to amuse.