The master of disguise and surveillance is about to apply his considerable skills to uncovering what really happened to Louis-Charles, the lost son of Marie Antoinette and King Louis XVI. Supposedly the dauphin died in Paris' Temple Prison, but rumors persisted for decades that the 10-year-old had been smuggled out of the black tower where he was held captive.

Now a recent murder has refocused interest in the old mystery of the child's demise. The investigation uncovers evidence that suggests perhaps Louis XVII is still alive and well. If so, that might explain the sudden whirlwind of violence that swirls around this possible survivor of the royal family.

A surfeit of political intrigue, treachery, cover-ups, and conspiracy make this highly entertaining period piece filled with delightful characters and intricate plot complications one you won't want to miss.