Poison in Jest — Joy Reed

Madame Seraphina Fox, Victorian London's most popular (and fraudulent) medium has her hands full with a new adventure. When a wealthy client hires her to summon up the spirit of the Duke of Wellington, she soon realizes there's danger afoot -- and not from Napoleon. The dinner planned to celebrate the Duke's victory serves up generous helpings of greed, treachery, and sudden death. Madame Fox really needs a strategic genius to sort out this mess. Especially when a ghost from her own past appears to threaten her livelihood. . ..