The Pear affair

"Penelope "Nell" Magnificent spends as little time as possible with her greedy grocery-mogul father and fashion-obsessed mother. But when they mention an important trip to Paris, Nell begs to go along. Her beloved former au pair, Perrine, now lives in Paris. "Pear" used to write every month, promising to one day rescue Nell from her parents. Then the letters stopped suddenly, and Nell wants to find out why. With the help of a friendly bellboy at her parents' ultra-fancy hotel, Nell sets out into--and under--the streets of Paris in search of Pear. Together they explore some of the darkest, most mysterious parts of the city. As they get closer to finding out what happened to Pear, they bring to light a sinister plot to destroy a cherished--and delicious--part of Parisian life."--Jacket.
While accompanying her parents to Paris, twelve-year-old Nell sets off to investigate the disappearance of her beloved, former au pair, affectionately known as Pear.