City of darkness and light - Rhys Bowen

Molly and Daniel
Sullivan are settling happily into the new routines of parenthood, but
their domestic bliss is shattered the night a gang retaliates against
Daniel for making a big arrest. Daniel wants his family safely out of
New York City as soon as possible. In shock and grieving, but knowing
she needs to protect their infant son Liam, Molly agrees to take him on
the long journey to Paris to stay with her friends Sid and Gus, who are
studying art in the City of Light.

But upon arriving in Paris,
nothing goes as planned. Sid and Gus seem to have vanished into thin
air, and Molly's search to figure out what happened to them will lead
her through all levels of Parisian society, from extravagant salons to
the dingy cafes where starving artists linger over coffee and loud
philosophical debates. And when in the course of her search she stumbles
across a dead body, Molly, on her own in a foreign country, starts to
wonder if she and Liam might be in even more danger in Paris than they
had been at home.

As Impressionism gives way to Fauvism and
Cubism, and the Dreyfus affair rocks France, Molly races through Paris
to outsmart a killer in City of Darkness and Light, Rhys Bowen's most spectacular Molly Murphy novel yet.