Late one afternoon around Christmas, Willi, the castle's
German electrician, entered the French quarters to replace a blown fuse. About
5:30 p.m., Willi strolled through the gate out of the prisoners' yard, turned
left through the archway into the German yard, and made his way to the park
gate. Here, even though he was well-known to everyone, Willi was asked for his
pass. He had the wrong one. In fact, "Willi" was Lieut. A. Perodeau. Though his
disguise was near-perfect, Perodeau's scarf may have tipped off the guard: It
wasn't the same color as that worn by the real Willi.