Still he was aware that a French army was on its way to attack the Spaniards in Italy; he was under instructions to take the earliest advantage which his position upon the frontier might offer him; he knew that both theory and practice authorized a general, in that age, to break his fast, even in time of truce, if a tempting morsel should present itself; and, above all, he thoroughly understood the character of his nearest antagonist, the new governor of the Netherlands, Philibert of Savoy, whom he knew to be the most unscrupulous chieftain in Europe.

These considerations decided him to take advantage of the hermit-banker's communication.
A day was accordingly fixed, at which, under the guidance of this newly-acquired ally, a surprise should be attempted by the French forces, and the unsuspecting city of Douay given over to the pillage of a brutal soldiery.

The time appointed was the night of Epiphany, upon occasion of which festival, it was thought that the inhabitants, overcome with sleep and wassail, might be easily overpowered.

(6th January, 1557.) The plot was a good plot, but the Admiral of France was destined to be foiled by an old woman.

This person, apparently the only creature awake in the town, perceived the danger, ran shrieking through the streets, alarmed the citizens while it was yet time, and thus prevented the attack.
Coligny, disappointed in his plan, recompensed his soldiers by a sudden onslaught upon Lens in Arthois, which he sacked and then levelled with the ground.