The Really Big Ka-Boom — Kristine Kathryn Rusch

Secret Master of Fandom and private detective Spade thought he would be spending Christmas Eve alone -- until a strange call from Paladin changes his plans. And just when he thinks the evening can't get any stranger, a huge blast sends his world into chaos, along with that of Paladin and Casper.

And what the trio learn next might prove even more explosive.

“Great characters.”
-- Little Big Crimes

“This series is a fun glimpse into the world of science fiction fandom.”
-- Gumshoes, Gats, and Gams

“I hope to read many more stories about Spade and Paladin.”
-- Bill Crider, Mystery Scene