Transcription: The news of our great adventure had swept right round the world. Hamburg laid on a civic banquet in our honour. The professor loved to tell the whole story of our experiences, omitting only the episodes with the compass. For a scientist to be baffled by such an unexplained fact is a mental torture. Back in his study, while looking at his collection of minerals, I came across the compass and started examining it. Then, I gave a loud cry, and he came running to find out what had happened. The compass! I cried, See! The needle points south, not north! The poles have been reversed! He examined the ...
