Honore de Balzac 
Alkahest 
Or, The House of Claes

Regarded by many critics as one of Honore de Balzac’s foremost literary achievements, the novel The Alkahest offers an incisive look at the dangers of obsession. Scientist Balthazar Claes begins his research into alchemical properties with the best of intentions, but before long, he begins to neglect everything else in his life.