Madame's poor sense of smell and ignorance about Grenouille's gifts, coupled with his assistance in finding her hidden money through his olfactory ability, caused Madame to believe he was psychic. She believed that psychic people bring bad luck and death. Due to this fear, Madame sells Grenouille to the tanner, Grimal.
Grenouille works as long as there's light. After a year Grenouille contracts anthrax, which is usually fatal, but Grenouille survives and is now immune to the disease. This makes him significantly more valuable as a worker, and he's finally allowed a bed and better food.
On a day when he had memorized nearly all the smells of the city, he is surprised by a unique smell. He then traces it with his nose, and finds that the source of this scent is a young virgin girl just passing puberty. Entranced by her scent and believing that he alone must possess it, he kills her and stays with her body until the scent has left it.
Grimal allows Grenouille time to himself every week to explore the city. Grenouille "the tick" feels triumphant and alive, and experiences the urge to hunt for scents in the smelly city of Paris.
Baldini hears the shrill servants' entrance bell as he heads out of his office. Nobody answers the door, so Baldini heads downstairs to answer it himself. Outside is Grenouille, cowering, with goatskins from Monsieur Grimal.
He becomes apprenticed to a once great perfumer, Baldini, and proves himself a wonder although this is not revealed to anyone except Baldini.