Col. Pylon learns from the Resistance that Greta has been brought to Castle Schmenge in the Black Forest, not far from his hideout; Hans is due to arrive any day. The Castle, a museum and popular tourist attraction before the war, has been turned into an armed camp, teeming with over a thousand crack German troops. Although Dr. Schabbs has yet to arrive from Berlin, Greta's presence has the Castle in a state of high tension; the soldiers are edgy and trigger-happy. If anything happens to Greta before Hans and the Doctor arrive, they've been told, Schmenge's dungeons will echo with their screams...

Horrified, Chunk notifies headquarters by radio of what he's learned. Hours later, they reply: infiltrate Castle Schmenge and terminate the experiment. The Nazis' evil plans must fail, he is told, or the Allies cannot hope to win the war. Destroy Greta at all costs; if possible, eliminate Hans as well. Regrettably, Dr. Schabbs is not expected to arrive for several more days, so his life will be spared; the plan cannot wait for him.

The Resistance provide Chunk with a set of tourist maps of the castle, purchased at the castle's gift shop before the war. Of course, these maps only show the general layout of each floor; they don't reveal the locations of troops, items, or secret rooms, and some details have been left out, or have changed in the years since the castle once again became a military installation. Chunk is smuggled in the back of a refuse truck to the castle's side entrance; armed only with a 9mm pistol, he cautiously slips into Castle Schmenge and begins to execute his assignment. After the war, future generations of DIA operatives studying Agent Pylon's dossier would refer to it as...