While a student at the world’s top perfume school, Eric Foster creates an aphrodisiac fragrance of astonishing potency, the Holy Grail of the perfumer’s art. But when his creation is tied to an outbreak of passion-driven homicides, he becomes the NYPD’s prime suspect, facing a charge of serial murder. Desperate to prove his innocence, Eric reluctantly teams up with Tanya Cole, a forensic chemist who seems born to exasperate him. Their quest takes them to Yemen and France and plunges them into the dark realms of organized crime, child labor, and Third World interrogation. Against increasingly violent adversaries, Eric’s only advantage is his extraordinary sense of smell — and that of his rescued bloodhound, Daisy. $1.99 on Kindle.