Home Improvement: Undead Edition - Simon R. Green, Heather Graham, James Grady, Charlaine Harris, S.J. Rozan, Rochelle Krich, Toni L.P. Kelner, E.E. Knight, Victor Gischler, Stacia Kane, Melissa Marr, Suzanne McLeod, Seanan McGuire, Patricia Briggs
I tried to read the Briggs and Harris story and couldn't get into it (and I LOVE the Mercy series) but I did read the Seanan McGuire story "Through This House".

It was a short filler piece for the series and it is an absolute must that you read the book that takes place before this or you will be lost. I read it a long time ago and I was a little lost. Thank you exposition.