Symbol to the eyes of urban people of an authentic nature, the French forest lives an unprecedented phase of industrialization. Heavy mechanization, mono cultures, fertilizers and pesticides, forest management follows the intensive agricultural model at an accelerated speed.。故事发生在二战期间,在瑞士科学家图贝尔博士发明了一种炸弹装置。福尔摩斯非常有技巧的把他从盖世太保眼皮底下救出来回到伦敦,可图贝尔博士又落到了莫利亚蒂教授的手中。图贝尔画了一张暗号图,福尔摩斯经过努力终于把那些跳舞小人的信号图解开了,并冒险闯入了虎穴。。