1914. Europe is at war. The experts on deciphering code and secret writing are wild with excitement: What in the world can be the meaning of those incomprehensible notes scribbled by secret agent Ludwig Wittgenstein? The young scholar himself is unable to help them he is hunting a wild beast, a figure of dubious existence Starting with Wittgenstein s early encounter with Bertrand Russell and their discussion whether a rhinoceros was in the room or not culminating in Russell s sigh: He thinks nothing empirical is knowable!, young readers get familiar with Ludwig Wittgenstein s controversial character and thought, especially his thoughts on the nature of language. In the disguise of a fictive and adventurous biography, the book allows for amusing and profound philosophising on the sense and non-sense of language. Interestingly enough, it is oftentimes Wittgenstein himself who speaks to the reader, as the text is intermingled with many quotes from his books. "