A Spade/Paladin Conundrum Books in Order

Private detective Spade receives an unusual request at a science fiction convention from the mysterious Paladin. She needs help finding a teenage boy who disappears whenever she approaches, leaving Spade to investigate an apparently impossible case.

Detective Spade worries when a huge celebrity agrees to attend Celebcon Five as its guest of honor. Paladin reveals why Dmitri Karnikov is coming, leaving Spade racing to keep the science fiction convention from becoming a crime scene.

Paladin discovers a suspicious box and note at a science fiction convention and believes it contains a bomb. She and detective Spade must identify the bomber and protect the attendees while waiting for the police.

While running a convention over Halloween weekend, detective Spade reluctantly agrees to watch a teenage girl calling herself Casper. Paladin's request suggests this is more than babysitting, drawing him into a crime that needs his help.

Five mysteries introduce private detective Spade and his enigmatic partner Paladin within science fiction fandom. The collection includes investigations from Stomping Mad to Trick or Treat, bringing together their early encounters with puzzles surrounding fans and conventions.

Private detective Spade expects a solitary Christmas Eve until Paladin's strange call changes his plans. A sudden explosion throws Spade, Paladin and Casper into turmoil, and their investigation reveals a problem more unsettling than the blast itself.

Spade organises a memorial charity auction for the late science fiction fan Brendan Witt. When valuable fanzines disappear, he and Paladin must recover them before the loss becomes public, while figuring out the puzzling reason behind their disappearance.