The voice of the angel / Mousseau Guillaume inside their mobile phones was their whole life... Madeleine and Jonathan, two strangers, run into each other in the passenger hall of JFK airport, and the objects in their hands fall. When they pick them up, they each accidentally take the other's cell phone. But the matter only becomes clear to them when they are ten thousand kilometers apart: she is in Paris, he is in San Francisco. Curiosity wins, and each of them investigates the contents of the device in their hands. To their surprise, it turns out that their lives are connected by a secret they thought they had buried for the world. The voice of the angel is a story that begins as a romantic comedy and skillfully turns into a fascinating thriller with a beautifully timed ending. "Sophisticated alchemy in which tension and emotions are interwoven with marvelous talent." La Repubblica "Musso sweeps us away in an extraordinary romantic thriller." Le Maten "We plunge into the mystery of Mousseau like children jumping into puddles with both feet." Le Parisien Guillaume Mousseau is an economics teacher by profession who decided to focus on his favorite thing of all: writing thrillers. He does this very successfully. His books are a worldwide success and are translated into many languages.