Yesterday, famous children's-book author J.K. Rowling offered a cryptic tweet:

Ben Tausig, the mind formerly behind the Onion AV Club's crossword puzzles and a Gawker pal, has launched the American Values Club Crossword, a weekly subscription crossword puzzle that will feature various notables writing crossword puzzles, because why not? You can go here to buy the inaugural submission, which…

Some strains of the intestinal bacterium E. coli can kill you. This one can solve Sudoku puzzles. I don't know which one is scarier.