Ah, I enjoyed this one. I really liked Mackie, and Tate was really great (strong, cool, opinionated). I thought the mythology on this one was interesting. I wish we could have explored Gentry a little more and my favorite character was Emma (do we think she is a little more than friends with Janice?)
I do not think the book needs a sequel, but I imagine one is coming (everything seems to become a series anymore). This is a great October read for a chilly Fall night when the trees sway making shadows that may just be shadows, but could also be a trio of dead girls coming to steal your garden gloves.