The Cellist - by Daniel Silva

Gabriel Allon is the protagonist of a series of spy novels by Daniel Silva. Here are some key details about him:

1. **Background**: Gabriel Allon is an Israeli intelligence officer and master art restorer. He was recruited by the Israeli intelligence service (referred to as "The Office") at a young age and has since become one of its most skilled and feared operatives.

2. **Art Restorer**: In addition to his work in intelligence, Allon is a renowned art restorer. This dual career often plays a significant role in the novels, as his assignments sometimes intersect with the art world.

3. **Personal Tragedy**: Allon's life is marked by personal tragedy. His first wife, Leah, and their young son were severely injured in a bombing attack aimed at Allon. Leah is left in a permanent catatonic state, and this event profoundly affects Allon's character and motivations throughout the series.

4. **Skills**: Allon is highly skilled in espionage, counterterrorism, and assassination. His abilities make him a key asset in missions involving the most dangerous and elusive targets.

5. **Morality and Complexity**: Allon is depicted as a complex character, often grappling with the moral ambiguities of his work. He is driven by a sense of duty and justice but is also haunted by the violence and loss that come with his profession.

6. **Supporting Cast**: The series features a recurring cast of characters, including fellow operatives from The Office, art world colleagues, and family members. These characters add depth to the stories and provide various perspectives on Allon's life and work.

7. **Setting and Plots**: The novels are known for their intricate plots, which often involve global politics, terrorism, and art theft. The settings range from the Middle East to Europe and the United States, providing a rich and varied backdrop for Allon's adventures.