Lord Dunsany's Gibbelins as a TTRPG monster

"The Gibbelins eat, as is well known, nothing less good than man. Their evil tower is joined to Terra Cognita, to the lands we know, by a bridge. Their hoard is beyond reason; avarice has no use for it; they have a separate cellar for emeralds and a separate cellar for sapphires; they have filled a hole with gold and dig it up when they need it. And the only use that is known for their ridiculous wealth is to attract to their larder a continual supply of food. In times of famine they have even been known to scatter rubies abroad, a little trail of them to some city of Man, and sure enough their larders would soon be full again."

• No. Appearing: 4-6, 10-100, 10,000+
• Armor Class: 10
• Move: 30/60
• HD: 1
• % in lair: 100%
• Attacks: 1d6 (short sword)
• Special Attacks: Save vs. Wisdom at -5 or be compelled to approach treasure
• Special Defenses: +1, silver, or iron weapon to hit
• Intelligence: High
• Alignment: Evil
• Size: M

Gibbelins are Cursed Undead, forever bound to the treasure they lusted for in life. They use their treasure to instill this lust in others, and lure them to their lairs. Those killed by Gibbelins become Gibbelins themselves.

Gibbelins are immaterial except for their gemstone eyes, their teeth of sharpened gold and silver, and their jewel laden swords. When they are reduced to zero hit points, these items - worth a total of 100 gp in value - drop to the ground, and the Gibbelin re-manifests in its lair 24 hours later. 

Gibbelin lairs consist of three types: Area, Complex, and Fortress

An Area can be a room inside a dungeon, a small cave, mausoleum, etc... Gibbelins may make a lair of any place where adventurers travel, tempting them with easy treasure. The Gibbelins will lie in wait to attack when the treasure is approached, gaining +1 to their surprise roll. 4-6 Gibbelins will be found in an Area.

A Complex can be a cave or other structure with multiple rooms, paths, etc... Gibbelins will leave tempting trails of treasure to lure passersby into these lairs, attacking with overwhelming force those foolish enough to enter. 

A Fortress is a legendary location in a far remote region, such as the edge of the world. At least 10,000 Gibbelins will be found in a Fortress. A number so vast, it may as well be limitless. No one has ever been known to successfully enter a Gibbelin Fortress and escape with their lives. This has never stopped mortals from trying. Gibbelins will make sure from generation to generation that rumors of their Fortress reach mortal ears in The Fields We Know.

While the typical Gibbelin was once an average mortal, when those of excessive greed become Gibbelins, they can become much more fearsome than their fellow undead, clad in suits of jeweled armor, and wielding far greater powers.

Sidney H. Sime