Something howls in the trees.

And then a hundred and twenty pounds of enraged, snarling wolf slam into Hal.

(The sound of that growl is enough to raise the dead -- or at least the seeming dead. Falstaff cracks one eye open to see what fresh terrors Hotspur has unleashed. Has he revealed himself to be actually the Devil?

. . . Well, apparently he has a wolf on his side, which is definitely bad enough.)