"Suspense writing at its best."--HUFFINGTON POST It was supposed to be the start of a pleasant weekend in London for master art restorer and spy Gabriel Allon and his wife, Chiara. But a deadly pair of bombings in Paris and Copenhagen has already marred this lovely autumn day. Then, before he can stop a man he suspects is about to launch a third attack in Covent Garden, Gabriel is knocked to the pavement--and he can only watch helplessly...