Find the Headless Horseman's Pumpkin Shrine.

Description

Until the head of the Headless Horseman is destroyed, his rampage will not end.

The Horseman rests within the Forlorn Cloister of the Scarlet Monastery, in Tirisfal Glades. Go to his pumpkin shrine and speak these words:

Horseman, rise
Your time is nigh
You felt death once
Now, know demise!

This will rouse the fiend. Destroy the head of the Horseman and he will plague us no longer.

Completion

The origin of this shrine is unknown, but there is no doubt to whom it pays homage...

Additional Information