Florence, 1473. An impossible murder. A bitter rivalry. A serpent in the ranks.

Florentine investigator Guid'Antonio Vespucci returns to Florence from a government mission to find his dreams of success shattered. Life is good-but then a wealthy merchant dies from mushroom poisoning at Guid'Antonio's Saint John's Day table, and Guid'Antonio's servant is charged with murder. Convinced of the youth's innocence and fearful the killer may strike again, Guid'Antonio launches a private investigation into the merchant's death, unaware that at the same time powerful enemies are conspiring to overthrow the Florentine Republic-and him.

A clever, richly evocative tale for lovers of medieval and Renaissance mysteries everywhere, The Hearts of All on Fire is a timeless story of family relationships coupled with themes of love, loss, betrayal and, above all, hope in a challenging world.