Flagged as the "Extraordinary new Gabriel Allon Thriller" MOSCOW RULES is the first of this series I've read so far.
From the Blurb:
The violent death of a journalist leads agent turned art-restorer, Gabriel Allon, to Russia. Here he finds that in terms of spycraft, the stakes are the highest they've ever been. He's playing by Moscow rules now.
Opening Lines:
The invasion began, as it always did, in the last days of December. They came by armored caravan up the winding road from the floor of the Rhone Valley or descended onto the treacherous mountaintop airstrip by helicopter and private plane. Billionaires and bankers, oil tycoons and metal magnates, supermodels and spoiled children, the moneyed elite of a Russia resurgent.
The violent death of a journalist leads agent turned art-restorer, Gabriel Allon, to Russia. Here he finds that in terms of spycraft, the stakes are the highest they've ever been. He's playing by Moscow rules now.