The adage reckons a picture to be worth 1,000 words. Of course, as has been remarked, that means 1,001 words must be worth more than a picture. (On which wiseguy basis, I will generously trade this column for that Rembrandt in your loft.) But then it might take something closer to 1,000 pages to record everything the owners of Thousand Words (Pioneerof the Nile) have experienced over the past year. This colt gave a literal quality to their topsy-turvy fortunes when rearing and toppling in the Derby preliminaries, sending Bob...