I did it! The fifth book was a bit of a dud, but still...
Creepy Crawlies - The Adventure of the Speckled Band by Sir Arthur Conan Doyle
Reads with (BookLikes) Friends - Ammie, Come Home by Barbara Michaels
Full Moon - Ravenwood by Margaux Gillis
Black Cat - Ceremony in Death by J.D. Robb
Set on Halloween - Bad Kitty: A Hot Halloween Romance by Cari Quinn