Headless Horseman

The Headless Horseman is a friend that stars in a legend that involves Hallow's End.

Appearance
The Headless Horseman looks like a headless knight in black leathery armour riding a black horse. The horse has bright green hooves and dribbles a greenish liquid. The knight on top of the horse holds a pumpkin that has bright green flames on the top and an angry face is carved into the pumpkin.

Background
The Headless Horseman is the antagonist in a story about Hallow's End. The story is that during Hallow's End, when the veil between realms is thinnest, this fiend crosses into the prime material plane from an unknown parallel plane. It thrives off the torture and fear of others, so he spends his time terrorizing innocent people until it is killed or until the sun rises, which automatically banishes this fiend from this plane.

"Jack-o'-Lantern" (1x05)
The party is celebrating Hallow's End in Port Sa'rim when the party get's interrupted by The Headless Horseman and when it sees that the party is not running in fear, he challenges them in combat. Eventually the party defeats him, causing nothing but his pumpkin head to fly back into the sky as he says: "See you next year!"