So he was still stuck on that book. Though it had been weeks since 
Dr. X had released any more of those book-hunting mites into the airspace of 
the Leased Territories, Judge Fang knew that he was still offering a nice 
bounty to anyone who could tell him the whereabouts of the book in question. 
Judge Fang was beginning to wonder whether this obsession with the book might 
be a symptom of a general decline in the Doctor's mental powers.