France, Summer 1914. War is imminent.

Following Lieutenant Vallier's dramatic rescue, the German spy network has been damaged, but not defeated. Wilhelm's Spy has retreated into the shadows, from where a new, diabolical plot emerges to destroy France's defences before war is even declared. Only one man can track down the lethal agent, and put an end to their campaign of terror. A man for whom the battle for France's future has become a personal score to settle.

Chantecoq. King of detectives. Master of disguise.

With a new ally to train, and new enemies to vanquish, Chantecoq throws himself into a tense race against the clock to thwart this final, desperate scheme by the German spies.

But his enemies are no stranger to adversity, and never more dangerous than when cornered. Chantecoq will need all his powers, and all his friends, if he is to save France... from Wilhelm's Spy.

The Gallic rooster fights the German viper. One will stand... and one will fall.

First serialised in Le Petit Parisien from November 1914 to April 1915 and never before translated into English, Arthur Bernède's sequel to the classic Chantecoq and the Aubry Affair is a sweeping epic, showing Europe's great powers on the very brink of war. A bold tale of honour, patriotism, romance, and selfless heroism, which continues the story of Chantecoq's allies and adversaries.