H gets top billing — but a stubborn B has something scary to say — as the inside-out alphabet gives a howl-arious Halloween performance. (Ages 4-8) Ack It’s time for the show, and A isn’t ready. But then again, Halloween can only start with one letter, no matter how the A-B-Cs normally go The misbehaving alphabet is back, and there’s no telling who will take the stage next. Z for zombie? P for pirate? Will X think of something good in time?