Yesterday's hunch was confirmed this morning by the Mark Morris Dance Group: Mikhail Baryshnikov and Mark Morris will collaborate again, this weekend, at On the Boards. (Tickets are already sold out.)

I asked Jessica Massart of On the Boards how they planned to sneak Baryshnikov into the theater. Secret underground tunnel? "Ha!" she wrote back. "Helicopter? High security zip line? Disguise him in a big hat?"